Which GTD app or setup for my pda?

[jkder]

I just got a windows mobile 6 pda. I want to put a fast GTD system on it. Currently it comes with Outlook, which I find very unfriendly for GTD. I'd like to either A) make outlook better for GTD, or B) get a new GTD based app for it. Bellow are some specifics on what im looking for.

-It CANT be internet based. I dont have the data plan...which means I dont use email
-also doesnt need to sync to anything
-create categories, easily manageable and customizable
-I want the completed actions to automatically delete or go invisible
...etc, any other GTD components you can think of.

Does anyone know a great app like this for windows mobile 6? If not I wouldnt mind setting up my "Tasks" better for GTD but I dont see any options for making lists/catagories/etc.

Thank you