... and maybe useful. I'll surely give it a try in the infinite quest for the right tool to remove some mess from my working days :)
Anyway, even for me syncing is the problem, not with .Mac but with Palm or iCal...
What about letting us "publish or "unpublish" a set of to-do in iCal? If all the to-dos of every single project could maybe stall iCal, a single "project-set" could solve a work-trip or the daily stuff. Then, when you've done, you can remove the old set (maybe keeping tracks of completed and uncompleted tasks) and publish the new one in iCal, to have it always ready on your Palm or to publish it on the web with .Mac.

Well, anyway, thanks for the effort, the idea is very good and the UI too.
Hope you go on developing it.