Cory1492 has posted a new version of his app for the Nintendo DS:

.1 final added, source and all separate sample packages now in one zip. No feature/bug fixes this go.

3in1 version is now essentially discontinued, I no longer see any reason to waste my already limited time competing with someone else on such parallel projects when nearly all the differences are mundane, especially now that EZ team seems much more intent on backing Rudolph's version (their email quoted today here).

The remaining incentive to work with 3in1, for me, can be filled entirely by small and uncomplicated (and generally not public) programs.