It adds the ability to nest tasks under one another. Based entirely on properties of the built-in Tasks - will sync with Exchange/Outlook, and requires no importing of Tasks.

Installation:
- Copy the Nested_Tasks.cab file to your device.
- Run it.

General Usage:
- On first use no Tasks will be nested (obviously).
- Tap-and-hold on an item to be nested (the "Child"), choose Cut from the context menu.
- Tap-and-hold on an item to become the "Parent", choose Paste Here.

Features:
- Cut and Paste tasks to create nesting.
- Add new, edit and Delete tasks.
- Copy tasks to create duplicates.
- View and set task Priority from the menu.
- Complete or Activate Tasks with the checkboxes.

Screenshots:


Update Description:
v0.6:
- ADDED: Filter by Priority (eg Include High, Normal and exclude Low).
- ADDED: Collapse Others function - collapse all but the currently selected Node.
- ADDED: Moved menus (left = Refresh, right = menu) in line with standards.
- FIXED: Changing Priority sometimes altered the displayed Subject (but not the actual Subject).
- FIXED: Checking boxes not always marking Task as complete.
- FIXED: Unhandled Error when adding Task if NOT showing Completed Tasks.
- FIXED: Child nodes not always re-drawn when pasting Parent.
- FIXED: Save button not always working in Task edit screen.
- FIXED: Option to "start collapsed" logic was reversed (selected resulted in expanded instead).

v0.512:
- ADDED: Automatically handles the Remind Me option when a reminder date is set or cleared.
- ADDED: Option to disable the on-screen keyboard if your device has a hardware keyboard.
- ADDED: Option to show Start Date in Task subject.
- ADDED: Option to prefix Start and Due dates in Task subject (eg [s:01/01/08]).
- ADDED: Option to start with tree collapsed.
- ADDED: Dark Grey colour option, for easier viewing of completed Task titles.

v0.511:
- ADDED: "AppToDate" installer file, for easier future updates once on your device.

v0.510:
- FIXED: Menu options "Show Completed", "Show Priority", "Show Due Date" not saving to registry.
- FIXED: "None" Due Dates shown in Tree view.
- ADDED: Current Task priority shown in menu.
- ADDED: "About" message box with version number.

v0.500:
- FIXED: Several major bugs (errors on modifying any Task after having edited any other Task).
- ADDED: Major re-write, some slight speed improvements.

v0.400:
- ADDED: Save settings (to registry).
- ADDED: Sep.settings application.
- ADDED: Small improvement in loading time.

v0.300:
- ADDED: Set Priority from menus.
- ADDED: View and edit notes attached to Tasks.
- ADDED: Options to show Due Date and Priority before or after Task subject.

v0.291:
- FIXED: Importance added to display after repeated edits.
- FIXED: Action button opening Tasks whilst in Settings screen.
- ADDED: CAB installer.
- ADDED: AppToDate support.

v0.28:
- FIXED: Saving changes to Task hides Due Date from list (if Show Due Date ticked).
- FIXED: Child Tasks not displayed when pasting their Parent.
- FIXED: Check/Uncheck Task not updating the display.
- ADDED: Selectable colours for High, Normal, Low importance and Completed and Overdue.
- ADDED: Subject text automatically selected when editing New Task.
- ADDED: Settings page.

v0.27:
- FIXED: NullReferenceException on Exit in some situations.
- FIXED: Not returning to top of Tree after Refresh.
- ADDED: Calendar starts on today for Start, Due and Reminder dates if not already set (can still be left blank with "None" buttons).
- ADDED: Show Completed option (temporarily "orphans" Tasks whose Parent is not shown).

v0.26:
- FIXED: Input Panel not hiding after editing.
- FIXED: Task date fields showing current (not actual) dates.
- FIXED: Treeview not getting focus after editing.
- FIXED: Treeview top node not selected after Refresh.
- ADDED: Automatically edit New tasks.
- ADDED: Prompt to Delete option.
- ADDED: Show Importance option (Refresh after changing this value).
- ADDED: Show Due Date option (Refresh after changing this value).
- ADDED: "Complete" menu option changes to "Activate" for currently completed Tasks.
- ADDED: "None" button for no Start, Due or Reminder dates ("None" is actually 01/01/4501).

v0.25:
- FIXED: Checkboxes dont complete/incomplete Tasks on first use (do it again and it works).
- FIXED: Unhandled exception when Pasting with no Tree Node selected.
- FIXED: Hangs after suspend if built-in Tasks app running.
- FIXED: Unavailable context menu items not disabled.
- ADDED: Context menu items to be repeated on Options menu for stylus-free use.
- ADDED: Faster (near instant) response after Paste, New and Delete.
- ADDED: Edit (instead of Open) selected Task.
- ADDED: Expand All, Collapse All items on Options menu.
- ADDED: Start in Collapsed state.