It stores its data in xml format, so you can edit it if you like with your favorite editor. It's just a simple checklist that's tree-based.

The format is so simple, you could write your own apps to read/write it.

Note:
Some people have reported that the installer is having some issues with anything but WM5. Until it figure out, use the executable only here. Just put the file anywhere you want (on your PPC, of course) and run it.

Update Description:
v1.1.2007.0326:
- Parent nodes check/uncheck automatically when their child nodes are modified.
- More graceful error handling with crashdumps to file.
- Some bug fixes.
- Changed the save behavior to speed up the application.
- Filename is now displayed when editing and the state is represented by color. If it's red, you have unsaved changes.
- App will prompt on exit if there are unsaved changes.

***** [Mar 25, 2008] by Tom Monaco using AT&T Tilt running Dutty's 6.1
I'm writing this to clarify a point. The 1.2 update requires .NET compact framework 3.5, *not* 2.0. I added the change when I submitted the update, but it got overlooked.

**** [Sep 20, 2007] by Aimee using HTC Wizard, WM5
So simple, making it infinitely versatile, thanks! It could use a shortcut to add "children", but I'm not a programmer..... so I'll take what I can get.