Ok, I've gone ahead and implemented the credentials such that nothing is stored in plain text and the names for the fields do not include "username" or "password" so that greps or accidental viewings (without knowing the program) will not reveal anything. So programming against Murphy rather than Machiavelli.

@frethop If you would be interested in a full todo manager for Toodledo, in theory it shouldn't be too hard to add it to DoneIt. I've applied my lessons learned from DialCentral when adding support for both GrandCentral and GoogleVoice accounts. The main issue would just be the best way to share code that works with both todo manager backends.

If people don't mind getting their hands dirty by grabbing the code out of git and giving feedback on UI ideas for how to implement all of the features of RTM (besides just a text entry widget inside the Edit Dialog), that'd be great
https://garage.maemo.org/scm/?group_id=936
Things currently unsure of
* Tags
* postponement
* Recurrence
* Time estimate
* Location