diff --git a/cocoa/me/dg_cocoa.py b/cocoa/me/dg_cocoa.py
index 3e5b05d0..67775404 100644
--- a/cocoa/me/dg_cocoa.py
+++ b/cocoa/me/dg_cocoa.py
@@ -9,7 +9,7 @@ install_cocoa_trans()
 
 from hscommon.cocoa import signature
 
-from core.app_cocoa_inter import PyDupeGuruBase, PyDetailsPanel
+from core.app_cocoa import PyDupeGuruBase, PyDetailsPanel
 from core_me.app_cocoa import DupeGuruME
 from core_me import __appname__
 from core.scanner import ScanType
@@ -17,7 +17,7 @@ from core.scanner import ScanType
 class PyDupeGuru(PyDupeGuruBase):
     def init(self):
         self = super(PyDupeGuru,self).init()
-        self.py = DupeGuruME()
+        self._init(DupeGuruME)
         return self
     
     def removeDeadTracks(self):
diff --git a/cocoa/pe/dg_cocoa.py b/cocoa/pe/dg_cocoa.py
index 94411bc6..520f06fb 100644
--- a/cocoa/pe/dg_cocoa.py
+++ b/cocoa/pe/dg_cocoa.py
@@ -7,14 +7,14 @@
 from hscommon.trans import install_cocoa_trans
 install_cocoa_trans()
 
-from core.app_cocoa_inter import PyDupeGuruBase, PyDetailsPanel
+from core.app_cocoa import PyDupeGuruBase, PyDetailsPanel
 from core_pe import app_cocoa as app_pe_cocoa, __appname__
 from core.scanner import ScanType
 
 class PyDupeGuru(PyDupeGuruBase):
     def init(self):
         self = super(PyDupeGuru, self).init()
-        self.py = app_pe_cocoa.DupeGuruPE()
+        self._init(app_pe_cocoa.DupeGuruPE)
         return self
     
     def clearPictureCache(self):
diff --git a/cocoa/se/dg_cocoa.py b/cocoa/se/dg_cocoa.py
index a4bfe12b..910ae688 100644
--- a/cocoa/se/dg_cocoa.py
+++ b/cocoa/se/dg_cocoa.py
@@ -10,14 +10,14 @@ install_cocoa_trans()
 from hscommon.cocoa import signature
 
 from core.scanner import ScanType
-from core.app_cocoa_inter import PyDupeGuruBase, PyDetailsPanel
+from core.app_cocoa import PyDupeGuruBase, PyDetailsPanel
 from core_se.app_cocoa import DupeGuru
 from core_se import __appname__
 
 class PyDupeGuru(PyDupeGuruBase):
     def init(self):
         self = super(PyDupeGuru,self).init()
-        self.py = DupeGuru()
+        self._init(DupeGuru)
         return self
     
     #---Properties
diff --git a/core/app.py b/core/app.py
index 586602e6..1f4f9c14 100644
--- a/core/app.py
+++ b/core/app.py
@@ -44,7 +44,7 @@ class DupeGuru(RegistrableApplication, Broadcaster):
     #--- View interface
     # open_path(path)
     # reveal_path(path)
-    # start_job(jobid, func, *args) ( func(j, *args) )
+    # start_job(jobid, func, args=()) ( func(j, *args) )
     # get_default(key_name, fallback_value=None)
     # set_default(key_name, value)
     # show_extra_fairware_reminder()
@@ -226,7 +226,7 @@ class DupeGuru(RegistrableApplication, Broadcaster):
     
     def delete_marked(self, replace_with_hardlinks=False):
         self.show_extra_fairware_reminder_if_needed()
-        self.view.start_job(JOB_DELETE, self._do_delete, replace_with_hardlinks)
+        self.view.start_job(JOB_DELETE, self._do_delete, args=[replace_with_hardlinks])
     
     def export_to_xhtml(self, column_ids):
         column_ids = [colid for colid in column_ids if colid.isdigit()]
diff --git a/core/app_cocoa.py b/core/app_cocoa.py
index 74b34ef9..6a9a3093 100644
--- a/core/app_cocoa.py
+++ b/core/app_cocoa.py
@@ -7,16 +7,25 @@
 # http://www.hardcoded.net/licenses/bsd_license
 
 import logging
-import os.path as op
 
 from jobprogress import job
 from hscommon import cocoa
 from hscommon.cocoa import install_exception_hook, pythonify
+from hscommon.cocoa.inter import (signature, PyTable, PyOutline, PyGUIObject, PyFairware,
+    PySelectableList)
 from hscommon.cocoa.objcmin import (NSNotificationCenter, NSUserDefaults,
     NSSearchPathForDirectoriesInDomains, NSApplicationSupportDirectory, NSUserDomainMask,
     NSWorkspace)
 from hscommon.trans import tr
 
+from .gui.details_panel import DetailsPanel
+from .gui.directory_tree import DirectoryTree
+from .gui.problem_dialog import ProblemDialog
+from .gui.problem_table import ProblemTable
+from .gui.result_table import ResultTable
+from .gui.stats_label import StatsLabel
+from .gui.extra_fairware_reminder import ExtraFairwareReminder
+from .gui.prioritize_dialog import PrioritizeDialog
 from . import app
 
 JOBID2TITLE = {
@@ -27,23 +36,162 @@ JOBID2TITLE = {
     app.JOB_DELETE: tr("Sending to Trash"),
 }
 
-class DupeGuruView:
-    def __init__(self, app):
-        self.app = app
+class PyDupeGuruBase(PyFairware):
+    def _init(self, modelclass):
+        logging.basicConfig(level=logging.WARNING, format='%(levelname)s %(message)s')
+        install_exception_hook()
+        appdata = NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, True)[0]
+        self.py = modelclass(self, appdata)
+        self.progress = cocoa.ThreadedJobPerformer()
     
-    @staticmethod
-    def open_path(path):
+    #---Directories
+    def addDirectory_(self, directory):
+        return self.py.add_directory(directory)
+    
+    def removeDirectory_(self, index):
+        self.py.remove_directory(index)
+    
+    #---Results
+    def clearIgnoreList(self):
+        self.py.scanner.ignore_list.Clear()
+    
+    def doScan(self):
+        return self.py.start_scanning()
+    
+    def exportToXHTMLwithColumns_(self, column_ids):
+        return self.py.export_to_xhtml(column_ids)
+    
+    def loadSession(self):
+        self.py.load()
+    
+    def loadResultsFrom_(self, filename):
+        self.py.load_from(filename)
+    
+    def markAll(self):
+        self.py.mark_all()
+    
+    def markNone(self):
+        self.py.mark_none()
+    
+    def markInvert(self):
+        self.py.mark_invert()
+    
+    def purgeIgnoreList(self):
+        self.py.purge_ignore_list()
+    
+    def toggleSelectedMark(self):
+        self.py.toggle_selected_mark_state()
+    
+    def saveSession(self):
+        self.py.save()
+    
+    def saveResultsAs_(self, filename):
+        self.py.save_as(filename)
+    
+    #---Actions
+    def addSelectedToIgnoreList(self):
+        self.py.add_selected_to_ignore_list()
+    
+    def deleteMarked(self):
+        self.py.delete_marked()
+    
+    def hardlinkMarked(self):
+        self.py.delete_marked(replace_with_hardlinks=True)
+    
+    def applyFilter_(self, filter):
+        self.py.apply_filter(filter)
+    
+    def makeSelectedReference(self):
+        self.py.make_selected_reference()
+    
+    def copyOrMove_markedTo_recreatePath_(self, copy, destination, recreate_path):
+        self.py.copy_or_move_marked(copy, destination, recreate_path)
+    
+    def openSelected(self):
+        self.py.open_selected()
+    
+    def removeMarked(self):
+        self.py.remove_marked()
+    
+    def renameSelected_(self,newname):
+        return self.py.rename_selected(newname)
+    
+    def revealSelected(self):
+        self.py.reveal_selected()
+    
+    def invokeCommand_(self, cmd):
+        self.py.invoke_command(cmd)
+    
+    #---Information
+    def getIgnoreListCount(self):
+        return len(self.py.scanner.ignore_list)
+    
+    def getMarkCount(self):
+        return self.py.results.mark_count
+    
+    @signature('i@:')
+    def scanWasProblematic(self):
+        return bool(self.py.results.problems)
+    
+    @signature('i@:')
+    def resultsAreModified(self):
+        return self.py.results.is_modified
+    
+    def deltaColumns(self):
+        return list(self.py.data.DELTA_COLUMNS)
+    
+    #---Properties
+    @signature('v@:c')
+    def setMixFileKind_(self, mix_file_kind):
+        self.py.scanner.mix_file_kind = mix_file_kind
+    
+    @signature('v@:c')
+    def setEscapeFilterRegexp_(self, escape_filter_regexp):
+        self.py.options['escape_filter_regexp'] = escape_filter_regexp
+    
+    @signature('v@:c')
+    def setRemoveEmptyFolders_(self, remove_empty_folders):
+        self.py.options['clean_empty_dirs'] = remove_empty_folders
+    
+    @signature('v@:c')
+    def setIgnoreHardlinkMatches_(self, ignore_hardlink_matches):
+        self.py.options['ignore_hardlink_matches'] = ignore_hardlink_matches
+    
+    #---Worker
+    def getJobProgress(self):
+        try:
+            return self.progress.last_progress
+        except AttributeError:
+            # I have *no idea* why this can possible happen (last_progress is always set by
+            # create_job() *before* any threaded job notification, which shows the progress panel,
+            # is sent), but it happens anyway, so there we go. ref: #106
+            return -1
+    
+    def getJobDesc(self):
+        try:
+            return self.progress.last_desc
+        except AttributeError:
+            # see getJobProgress
+            return ''
+    
+    def cancelJob(self):
+        self.progress.job_cancelled = True
+    
+    def jobCompleted_(self, jobid):
+        self.py._job_completed(jobid)
+    
+    #--- model --> view
+    def open_path(self, path):
         NSWorkspace.sharedWorkspace().openFile_(str(path))
     
-    @staticmethod
-    def reveal_path(path):
+    def reveal_path(self, path):
         NSWorkspace.sharedWorkspace().selectFile_inFileViewerRootedAtPath_(str(path), '')
     
-    def start_job(self, jobid, func, *args):
+    def start_job(self, jobid, func, args=()):
         try:
-            j = self.app.progress.create_job()
+            j = self.progress.create_job()
             args = tuple([j] + list(args))
-            self.app.progress.run_threaded(func, args=args)
+            self.progress.run_threaded(func, args=args)
         except job.JobInProgressError:
             NSNotificationCenter.defaultCenter().postNotificationName_object_('JobInProgress', self)
         else:
@@ -60,24 +208,145 @@ class DupeGuruView:
     
     def show_extra_fairware_reminder(self):
         NSNotificationCenter.defaultCenter().postNotificationName_object_userInfo_('ShowExtraFairwareReminder', self, None)
+
+class PyDetailsPanel(PyGUIObject):
+    py_class = DetailsPanel
+    @signature('i@:')
+    def numberOfRows(self):
+        return self.py.row_count()
+    
+    @signature('@@:@i')
+    def valueForColumn_row_(self, column, row):
+        return self.py.row(row)[int(column)]
     
 
-class DupeGuru(app.DupeGuru):
-    def __init__(self, data_module, appdata_subdir):
-        logging.basicConfig(level=logging.WARNING, format='%(levelname)s %(message)s')
-        install_exception_hook()
-        view = DupeGuruView(self)
-        appsupport = NSSearchPathForDirectoriesInDomains(NSApplicationSupportDirectory, NSUserDomainMask, True)[0]
-        appdata = op.join(appsupport, appdata_subdir)
-        app.DupeGuru.__init__(self, view, data_module, appdata)
-        self.progress = cocoa.ThreadedJobPerformer()
+class PyDirectoryOutline(PyOutline):
+    py_class = DirectoryTree
     
-    #--- Public
-    def start_scanning(self):
-        self._select_dupes([])
-        try:
-            app.DupeGuru.start_scanning(self)
-            return 0
-        except app.NoScannableFileError:
-            return 3
+    def addDirectory_(self, path):
+        self.py.add_directory(path)
     
+    # python --> cocoa
+    def refresh_states(self):
+        # Under cocoa, both refresh() and refresh_states() do the same thing.
+        self.cocoa.refresh()
+    
+
+class PyResultTable(PyTable):
+    py_class = ResultTable
+    
+    @signature('c@:')
+    def powerMarkerMode(self):
+        return self.py.power_marker
+    
+    @signature('v@:c')
+    def setPowerMarkerMode_(self, value):
+        self.py.power_marker = value
+    
+    @signature('c@:')
+    def deltaValuesMode(self):
+        return self.py.delta_values
+    
+    @signature('v@:c')
+    def setDeltaValuesMode_(self, value):
+        self.py.delta_values = value
+    
+    @signature('@@:ii')
+    def valueForRow_column_(self, row_index, column):
+        return self.py.get_row_value(row_index, column)
+    
+    @signature('c@:@')
+    def renameSelected_(self, newname):
+        return self.py.rename_selected(newname)
+    
+    @signature('v@:ic')
+    def sortBy_ascending_(self, key, asc):
+        self.py.sort(key, asc)
+    
+    def markSelected(self):
+        self.py.app.toggle_selected_mark_state()
+    
+    def removeSelected(self):
+        self.py.app.remove_selected()
+    
+    @signature('i@:')
+    def selectedDupeCount(self):
+        return self.py.selected_dupe_count
+    
+    # python --> cocoa
+    def invalidate_markings(self):
+        self.cocoa.invalidateMarkings()
+    
+
+class PyStatsLabel(PyGUIObject):
+    py_class = StatsLabel
+    
+    def display(self):
+        return self.py.display
+    
+
+class PyProblemDialog(PyGUIObject):
+    py_class = ProblemDialog
+    
+    def revealSelected(self):
+        self.py.reveal_selected_dupe()
+    
+
+class PyProblemTable(PyTable):
+    py_class = ProblemTable
+
+class PyExtraFairwareReminder(PyGUIObject):
+    py_class = ExtraFairwareReminder
+    
+    def start(self):
+        self.py.start()
+    
+    def updateButton(self):
+        self.py.update_button()
+    
+    # model --> view
+    def start_timer(self):
+        self.cocoa.startTimer()
+    
+    def stop_timer(self):
+        self.cocoa.stopTimer()
+    
+    def enable_button(self):
+        self.cocoa.enableButton()
+    
+    def set_button_text(self, text):
+        self.cocoa.setButtonText_(text)
+    
+
+class PyPrioritizeDialog(PyGUIObject):
+    py_class = PrioritizeDialog
+    
+    def categoryList(self):
+        if not hasattr(self, '_categoryList'):
+            self._categoryList = PySelectableList.alloc().initWithPy_(self.py.category_list)
+        return self._categoryList
+    
+    def criteriaList(self):
+        if not hasattr(self, '_criteriaList'):
+            self._criteriaList = PySelectableList.alloc().initWithPy_(self.py.criteria_list)
+        return self._criteriaList
+    
+    def prioritizationList(self):
+        if not hasattr(self, '_prioritizationList'):
+            self._prioritizationList = PyPrioritizeList.alloc().initWithPy_(self.py.prioritization_list)
+        return self._prioritizationList
+    
+    def addSelected(self):
+        self.py.add_selected()
+    
+    def removeSelected(self):
+        self.py.remove_selected()
+    
+    def performReprioritization(self):
+        self.py.perform_reprioritization()
+
+class PyPrioritizeList(PySelectableList):
+    @signature('v@:@i')
+    def moveIndexes_toIndex_(self, indexes, dest_index):
+        self.py.move_indexes(indexes, dest_index)
+    
\ No newline at end of file
diff --git a/core/app_cocoa_inter.py b/core/app_cocoa_inter.py
deleted file mode 100644
index 35e4b1d1..00000000
--- a/core/app_cocoa_inter.py
+++ /dev/null
@@ -1,301 +0,0 @@
-# Created By: Virgil Dupras
-# Created On: 2010-02-02
-# Copyright 2011 Hardcoded Software (http://www.hardcoded.net)
-# 
-# This software is licensed under the "BSD" License as described in the "LICENSE" file, 
-# which should be included with this package. The terms are also available at 
-# http://www.hardcoded.net/licenses/bsd_license
-
-# Common interface for all editions' dg_cocoa unit.
-
-from hscommon.cocoa.inter import (signature, PyTable, PyOutline, PyGUIObject, PyFairware,
-    PySelectableList)
-
-from .gui.details_panel import DetailsPanel
-from .gui.directory_tree import DirectoryTree
-from .gui.problem_dialog import ProblemDialog
-from .gui.problem_table import ProblemTable
-from .gui.result_table import ResultTable
-from .gui.stats_label import StatsLabel
-from .gui.extra_fairware_reminder import ExtraFairwareReminder
-from .gui.prioritize_dialog import PrioritizeDialog
-
-class PyDupeGuruBase(PyFairware):
-    #---Directories
-    def addDirectory_(self, directory):
-        return self.py.add_directory(directory)
-    
-    def removeDirectory_(self, index):
-        self.py.remove_directory(index)
-    
-    #---Results
-    def clearIgnoreList(self):
-        self.py.scanner.ignore_list.Clear()
-    
-    def doScan(self):
-        return self.py.start_scanning()
-    
-    def exportToXHTMLwithColumns_(self, column_ids):
-        return self.py.export_to_xhtml(column_ids)
-    
-    def loadSession(self):
-        self.py.load()
-    
-    def loadResultsFrom_(self, filename):
-        self.py.load_from(filename)
-    
-    def markAll(self):
-        self.py.mark_all()
-    
-    def markNone(self):
-        self.py.mark_none()
-    
-    def markInvert(self):
-        self.py.mark_invert()
-    
-    def purgeIgnoreList(self):
-        self.py.purge_ignore_list()
-    
-    def toggleSelectedMark(self):
-        self.py.toggle_selected_mark_state()
-    
-    def saveSession(self):
-        self.py.save()
-    
-    def saveResultsAs_(self, filename):
-        self.py.save_as(filename)
-    
-    #---Actions
-    def addSelectedToIgnoreList(self):
-        self.py.add_selected_to_ignore_list()
-    
-    def deleteMarked(self):
-        self.py.delete_marked()
-    
-    def hardlinkMarked(self):
-        self.py.delete_marked(replace_with_hardlinks=True)
-    
-    def applyFilter_(self, filter):
-        self.py.apply_filter(filter)
-    
-    def makeSelectedReference(self):
-        self.py.make_selected_reference()
-    
-    def copyOrMove_markedTo_recreatePath_(self, copy, destination, recreate_path):
-        self.py.copy_or_move_marked(copy, destination, recreate_path)
-    
-    def openSelected(self):
-        self.py.open_selected()
-    
-    def removeMarked(self):
-        self.py.remove_marked()
-    
-    def renameSelected_(self,newname):
-        return self.py.rename_selected(newname)
-    
-    def revealSelected(self):
-        self.py.reveal_selected()
-    
-    def invokeCommand_(self, cmd):
-        self.py.invoke_command(cmd)
-    
-    #---Information
-    def getIgnoreListCount(self):
-        return len(self.py.scanner.ignore_list)
-    
-    def getMarkCount(self):
-        return self.py.results.mark_count
-    
-    @signature('i@:')
-    def scanWasProblematic(self):
-        return bool(self.py.results.problems)
-    
-    @signature('i@:')
-    def resultsAreModified(self):
-        return self.py.results.is_modified
-    
-    def deltaColumns(self):
-        return list(self.py.data.DELTA_COLUMNS)
-    
-    #---Properties
-    @signature('v@:c')
-    def setMixFileKind_(self, mix_file_kind):
-        self.py.scanner.mix_file_kind = mix_file_kind
-    
-    @signature('v@:c')
-    def setEscapeFilterRegexp_(self, escape_filter_regexp):
-        self.py.options['escape_filter_regexp'] = escape_filter_regexp
-    
-    @signature('v@:c')
-    def setRemoveEmptyFolders_(self, remove_empty_folders):
-        self.py.options['clean_empty_dirs'] = remove_empty_folders
-    
-    @signature('v@:c')
-    def setIgnoreHardlinkMatches_(self, ignore_hardlink_matches):
-        self.py.options['ignore_hardlink_matches'] = ignore_hardlink_matches
-    
-    #---Worker
-    def getJobProgress(self):
-        try:
-            return self.py.progress.last_progress
-        except AttributeError:
-            # I have *no idea* why this can possible happen (last_progress is always set by
-            # create_job() *before* any threaded job notification, which shows the progress panel,
-            # is sent), but it happens anyway, so there we go. ref: #106
-            return -1
-    
-    def getJobDesc(self):
-        try:
-            return self.py.progress.last_desc
-        except AttributeError:
-            # see getJobProgress
-            return ''
-    
-    def cancelJob(self):
-        self.py.progress.job_cancelled = True
-    
-    def jobCompleted_(self, jobid):
-        self.py._job_completed(jobid)
-    
-
-class PyDetailsPanel(PyGUIObject):
-    py_class = DetailsPanel
-    @signature('i@:')
-    def numberOfRows(self):
-        return self.py.row_count()
-    
-    @signature('@@:@i')
-    def valueForColumn_row_(self, column, row):
-        return self.py.row(row)[int(column)]
-    
-
-class PyDirectoryOutline(PyOutline):
-    py_class = DirectoryTree
-    
-    def addDirectory_(self, path):
-        self.py.add_directory(path)
-    
-    # python --> cocoa
-    def refresh_states(self):
-        # Under cocoa, both refresh() and refresh_states() do the same thing.
-        self.cocoa.refresh()
-    
-
-class PyResultTable(PyTable):
-    py_class = ResultTable
-    
-    @signature('c@:')
-    def powerMarkerMode(self):
-        return self.py.power_marker
-    
-    @signature('v@:c')
-    def setPowerMarkerMode_(self, value):
-        self.py.power_marker = value
-    
-    @signature('c@:')
-    def deltaValuesMode(self):
-        return self.py.delta_values
-    
-    @signature('v@:c')
-    def setDeltaValuesMode_(self, value):
-        self.py.delta_values = value
-    
-    @signature('@@:ii')
-    def valueForRow_column_(self, row_index, column):
-        return self.py.get_row_value(row_index, column)
-    
-    @signature('c@:@')
-    def renameSelected_(self, newname):
-        return self.py.rename_selected(newname)
-    
-    @signature('v@:ic')
-    def sortBy_ascending_(self, key, asc):
-        self.py.sort(key, asc)
-    
-    def markSelected(self):
-        self.py.app.toggle_selected_mark_state()
-    
-    def removeSelected(self):
-        self.py.app.remove_selected()
-    
-    @signature('i@:')
-    def selectedDupeCount(self):
-        return self.py.selected_dupe_count
-    
-    # python --> cocoa
-    def invalidate_markings(self):
-        self.cocoa.invalidateMarkings()
-    
-
-class PyStatsLabel(PyGUIObject):
-    py_class = StatsLabel
-    
-    def display(self):
-        return self.py.display
-    
-
-class PyProblemDialog(PyGUIObject):
-    py_class = ProblemDialog
-    
-    def revealSelected(self):
-        self.py.reveal_selected_dupe()
-    
-
-class PyProblemTable(PyTable):
-    py_class = ProblemTable
-
-class PyExtraFairwareReminder(PyGUIObject):
-    py_class = ExtraFairwareReminder
-    
-    def start(self):
-        self.py.start()
-    
-    def updateButton(self):
-        self.py.update_button()
-    
-    # model --> view
-    def start_timer(self):
-        self.cocoa.startTimer()
-    
-    def stop_timer(self):
-        self.cocoa.stopTimer()
-    
-    def enable_button(self):
-        self.cocoa.enableButton()
-    
-    def set_button_text(self, text):
-        self.cocoa.setButtonText_(text)
-    
-
-class PyPrioritizeDialog(PyGUIObject):
-    py_class = PrioritizeDialog
-    
-    def categoryList(self):
-        if not hasattr(self, '_categoryList'):
-            self._categoryList = PySelectableList.alloc().initWithPy_(self.py.category_list)
-        return self._categoryList
-    
-    def criteriaList(self):
-        if not hasattr(self, '_criteriaList'):
-            self._criteriaList = PySelectableList.alloc().initWithPy_(self.py.criteria_list)
-        return self._criteriaList
-    
-    def prioritizationList(self):
-        if not hasattr(self, '_prioritizationList'):
-            self._prioritizationList = PyPrioritizeList.alloc().initWithPy_(self.py.prioritization_list)
-        return self._prioritizationList
-    
-    def addSelected(self):
-        self.py.add_selected()
-    
-    def removeSelected(self):
-        self.py.remove_selected()
-    
-    def performReprioritization(self):
-        self.py.perform_reprioritization()
-
-class PyPrioritizeList(PySelectableList):
-    @signature('v@:@i')
-    def moveIndexes_toIndex_(self, indexes, dest_index):
-        self.py.move_indexes(indexes, dest_index)
-    
\ No newline at end of file
diff --git a/core_me/app.py b/core_me/app.py
new file mode 100644
index 00000000..92d9ead5
--- /dev/null
+++ b/core_me/app.py
@@ -0,0 +1,14 @@
+# Created On: 2011/09/20
+# Copyright 2011 Hardcoded Software (http://www.hardcoded.net)
+# 
+# This software is licensed under the "BSD" License as described in the "LICENSE" file, 
+# which should be included with this package. The terms are also available at 
+# http://www.hardcoded.net/licenses/bsd_license
+
+from core.app import DupeGuru as DupeGuruBase
+from . import data
+
+class DupeGuru(DupeGuruBase):
+    def __init__(self, view, appdata):
+        DupeGuruBase.__init__(self, view, data, appdata)
+    
diff --git a/core_me/app_cocoa.py b/core_me/app_cocoa.py
index 5d7e6c6a..5046dd57 100644
--- a/core_me/app_cocoa.py
+++ b/core_me/app_cocoa.py
@@ -9,13 +9,15 @@
 import logging
 from appscript import app, k, CommandError
 import time
+import os.path as op
 
 from hscommon.cocoa import as_fetch
 from hscommon.trans import tr
 
-from core.app_cocoa import JOBID2TITLE, DupeGuru as DupeGuruBase
+from core.app_cocoa import JOBID2TITLE
 
-from . import data, scanner, fs
+from . import scanner, fs
+from .app import DupeGuru as DupeGuruBase
 
 JOB_REMOVE_DEAD_TRACKS = 'jobRemoveDeadTracks'
 JOB_SCAN_DEAD_TRACKS = 'jobScanDeadTracks'
@@ -26,8 +28,9 @@ JOBID2TITLE.update({
 })
 
 class DupeGuruME(DupeGuruBase):
-    def __init__(self):
-        DupeGuruBase.__init__(self, data, 'dupeGuru Music Edition')
+    def __init__(self, view, appdata):
+        appdata = op.join(appdata, 'dupeGuru Music Edition')
+        DupeGuruBase.__init__(self, view, appdata)
         self.scanner = scanner.ScannerME()
         self.directories.fileclasses = [fs.MusicFile]
         self.dead_tracks = []
diff --git a/core_pe/app.py b/core_pe/app.py
new file mode 100644
index 00000000..92d9ead5
--- /dev/null
+++ b/core_pe/app.py
@@ -0,0 +1,14 @@
+# Created On: 2011/09/20
+# Copyright 2011 Hardcoded Software (http://www.hardcoded.net)
+# 
+# This software is licensed under the "BSD" License as described in the "LICENSE" file, 
+# which should be included with this package. The terms are also available at 
+# http://www.hardcoded.net/licenses/bsd_license
+
+from core.app import DupeGuru as DupeGuruBase
+from . import data
+
+class DupeGuru(DupeGuruBase):
+    def __init__(self, view, appdata):
+        DupeGuruBase.__init__(self, view, data, appdata)
+    
diff --git a/core_pe/app_cocoa.py b/core_pe/app_cocoa.py
index eabb7c33..2b47c5ee 100644
--- a/core_pe/app_cocoa.py
+++ b/core_pe/app_cocoa.py
@@ -19,10 +19,11 @@ from hscommon.path import Path
 from hscommon.cocoa.objcmin import NSUserDefaults, NSURL
 from hscommon.trans import tr
 
-from core import app_cocoa, directories
-from . import data, _block_osx
+from core import directories
+from . import _block_osx
 from .photo import Photo as PhotoBase
 from .scanner import ScannerPE
+from .app import DupeGuru as DupeGuruBase
 
 IPHOTO_PATH = Path('iPhoto Library')
 
@@ -128,9 +129,10 @@ class Directories(directories.Directories):
             return directories.Directories.has_any_file(self)
     
 
-class DupeGuruPE(app_cocoa.DupeGuru):
-    def __init__(self):
-        app_cocoa.DupeGuru.__init__(self, data, 'dupeGuru Picture Edition')
+class DupeGuruPE(DupeGuruBase):
+    def __init__(self, view, appdata):
+        appdata = op.join(appdata, 'dupeGuru Picture Edition')
+        DupeGuruBase.__init__(self, view, appdata)
         self.scanner = ScannerPE()
         self.directories = Directories()
         self.scanner.cache_path = op.join(self.appdata, 'cached_pictures.db')
@@ -164,17 +166,17 @@ class DupeGuruPE(app_cocoa.DupeGuru):
             except (CommandError, RuntimeError) as e:
                 raise EnvironmentError(str(e))
         else:
-            app_cocoa.DupeGuru._do_delete_dupe(self, dupe, replace_with_hardlinks)
+            DupeGuruBase._do_delete_dupe(self, dupe, replace_with_hardlinks)
     
     def _create_file(self, path):
         if (self.directories.iphoto_libpath is not None) and (path in self.directories.iphoto_libpath[:-1]):
             return IPhoto(path)
-        return app_cocoa.DupeGuru._create_file(self, path)
+        return DupeGuruBase._create_file(self, path)
     
     def copy_or_move(self, dupe, copy, destination, dest_type):
         if isinstance(dupe, IPhoto):
             copy = True
-        return app_cocoa.DupeGuru.copy_or_move(self, dupe, copy, destination, dest_type)
+        return DupeGuruBase.copy_or_move(self, dupe, copy, destination, dest_type)
     
     def selected_dupe_path(self):
         if not self.selected_dupes:
@@ -190,7 +192,7 @@ class DupeGuruPE(app_cocoa.DupeGuru):
         return ref.path
     
     def start_scanning(self):
-        result = app_cocoa.DupeGuru.start_scanning(self)
+        result = DupeGuruBase.start_scanning(self)
         if self.directories.has_iphoto_path():
             try:
                 app('iPhoto')
diff --git a/core_se/app.py b/core_se/app.py
new file mode 100644
index 00000000..92d9ead5
--- /dev/null
+++ b/core_se/app.py
@@ -0,0 +1,14 @@
+# Created On: 2011/09/20
+# Copyright 2011 Hardcoded Software (http://www.hardcoded.net)
+# 
+# This software is licensed under the "BSD" License as described in the "LICENSE" file, 
+# which should be included with this package. The terms are also available at 
+# http://www.hardcoded.net/licenses/bsd_license
+
+from core.app import DupeGuru as DupeGuruBase
+from . import data
+
+class DupeGuru(DupeGuruBase):
+    def __init__(self, view, appdata):
+        DupeGuruBase.__init__(self, view, data, appdata)
+    
diff --git a/core_se/app_cocoa.py b/core_se/app_cocoa.py
index 98418830..98320e7c 100644
--- a/core_se/app_cocoa.py
+++ b/core_se/app_cocoa.py
@@ -7,15 +7,15 @@
 # http://www.hardcoded.net/licenses/bsd_license
 
 import logging
+import os.path as op
 
 from hscommon import io
 from hscommon.path import Path
 from hscommon.cocoa.objcmin import NSWorkspace
 
 from core import fs
-from core.app_cocoa import DupeGuru as DupeGuruBase
 from core.directories import Directories as DirectoriesBase, DirectoryState
-from . import data
+from .app import DupeGuru as DupeGuruBase
 
 def is_bundle(str_path):
     sw = NSWorkspace.sharedWorkspace()
@@ -66,7 +66,8 @@ class Directories(DirectoriesBase):
     
 
 class DupeGuru(DupeGuruBase):
-    def __init__(self):
-        DupeGuruBase.__init__(self, data, 'dupeGuru')
+    def __init__(self, view, appdata):
+        appdata = op.join(appdata, 'dupeGuru')
+        DupeGuruBase.__init__(self, view, appdata)
         self.directories = Directories()
     
diff --git a/qt/base/app.py b/qt/base/app.py
index 74c48136..fed7520d 100644
--- a/qt/base/app.py
+++ b/qt/base/app.py
@@ -46,10 +46,11 @@ class SysWrapper(io.IOBase):
             logging.warning(s)
 
 class DupeGuru(QObject):
+    MODELCLASS = None
     LOGO_NAME = '<replace this>'
     NAME = '<replace this>'
     
-    def __init__(self, data_module):
+    def __init__(self):
         QObject.__init__(self)
         appdata = str(QDesktopServices.storageLocation(QDesktopServices.DataLocation))
         if not op.exists(appdata):
@@ -63,7 +64,7 @@ class DupeGuru(QObject):
             sys.stdout = SysWrapper()
         self.prefs = self._create_preferences()
         self.prefs.load()
-        self.model = DupeGuruModel(view=self, data_module=data_module, appdata=appdata)
+        self.model = self.MODELCLASS(view=self, appdata=appdata)
         self._setup()
     
     #--- Private
@@ -256,11 +257,11 @@ class DupeGuru(QObject):
     def reveal_path(path):
         DupeGuru.open_path(path[:-1])
     
-    def start_job(self, jobid, func, *args):
+    def start_job(self, jobid, func, args=()):
         title = JOBID2TITLE[jobid]
         try:
             j = self._progress.create_job()
-            args = tuple([j] + list(args))
+            args = (j, ) + tuple(args)
             self._progress.run(jobid, title, func, args=args)
         except job.JobInProgressError:
             msg = trmsg("TaskHangingMsg")
diff --git a/qt/me/app.py b/qt/me/app.py
index 6da49ad5..5d5d281b 100644
--- a/qt/me/app.py
+++ b/qt/me/app.py
@@ -6,7 +6,8 @@
 # which should be included with this package. The terms are also available at 
 # http://www.hardcoded.net/licenses/bsd_license
 
-from core_me import data, scanner, fs, __appname__
+from core_me import scanner, fs, __appname__
+from core_me.app import DupeGuru as DupeGuruModel
 
 from ..base.app import DupeGuru as DupeGuruBase
 from .details_dialog import DetailsDialog
@@ -14,13 +15,11 @@ from .preferences import Preferences
 from .preferences_dialog import PreferencesDialog
 
 class DupeGuru(DupeGuruBase):
+    MODELCLASS = DupeGuruModel
     EDITION = 'me'
     LOGO_NAME = 'logo_me'
     NAME = __appname__
     
-    def __init__(self):
-        DupeGuruBase.__init__(self, data)
-    
     def _setup(self):
         self.model.scanner = scanner.ScannerME()
         self.model.directories.fileclasses = [fs.MusicFile]
diff --git a/qt/pe/app.py b/qt/pe/app.py
index fcd006bd..b7430fdf 100644
--- a/qt/pe/app.py
+++ b/qt/pe/app.py
@@ -11,9 +11,10 @@ import logging
 
 from PyQt4.QtGui import QImage, QImageReader, QTransform
 
-from core_pe import data as data_pe, __appname__
+from core_pe import __appname__
 from core_pe.photo import Photo as PhotoBase
 from core_pe.scanner import ScannerPE
+from core_pe.app import DupeGuru as DupeGuruModel
 
 from ..base.app import DupeGuru as DupeGuruBase
 from .block import getblocks
@@ -66,13 +67,11 @@ class File(PhotoBase):
     
 
 class DupeGuru(DupeGuruBase):
+    MODELCLASS = DupeGuruModel
     EDITION = 'pe'
     LOGO_NAME = 'logo_pe'
     NAME = __appname__
     
-    def __init__(self):
-        DupeGuruBase.__init__(self, data_pe)
-    
     def _setup(self):
         self.model.scanner = ScannerPE()
         self.model.directories.fileclasses = [File]
diff --git a/qt/se/app.py b/qt/se/app.py
index ac34fa39..8b82c893 100644
--- a/qt/se/app.py
+++ b/qt/se/app.py
@@ -6,7 +6,8 @@
 # which should be included with this package. The terms are also available at 
 # http://www.hardcoded.net/licenses/bsd_license
 
-from core_se import data, __appname__
+from core_se import __appname__
+from core_se.app import DupeGuru as DupeGuruModel
 from core.directories import Directories as DirectoriesBase, DirectoryState
 
 from ..base.app import DupeGuru as DupeGuruBase
@@ -24,13 +25,11 @@ class Directories(DirectoriesBase):
             return DirectoryState.Excluded
 
 class DupeGuru(DupeGuruBase):
+    MODELCLASS = DupeGuruModel
     EDITION = 'se'
     LOGO_NAME = 'logo_se'
     NAME = __appname__
     
-    def __init__(self):
-        DupeGuruBase.__init__(self, data)
-    
     def _setup(self):
         self.directories = Directories()
         DupeGuruBase._setup(self)