Somewhere (on maemo ml if I remember correctly) he stated he started porting his apps on OS2008. In any case, I agree that those are best pim apps for ITs, simply because they are not bell&whistles but just works and have a great snap and well designed interface.
I recently had really no time to dig in the code for working reason, but - as he calls them - they are python scripts, so who knows python can also help with the job.