add sync to Dropbox
Maybe add some feature like GDT GTD's sync to Dropbox, this is a wonderful feature, I don't need to warry to loss data.but UltimateTo-Do can only sync to SD card.
I think this could be really useful. Having this option you would be able to use the full functionality of UTL without having to worry about what is supported in toodledo or not(Or that you will loose your tasks if the phone is lost or broken).
You could for example use sub-tasks without having a pro account in toodledo. Or create sub-task of other sub-tasks, wich is not supported in Toodledo.
The downside is that you will not be able to access your tasks on the PC, but i still thinks its a good solution. Especially for those who does not have a pro account in Toodledo.
Sync to Google Drive would also be nice, as an alternative to DropBox.