I can't get it to work with an iPaq 4155 which is even supported by activesync 4.2 and 4.5 (beta). It shows up in Dev Man as HP USb Sync but sync center doesn't show it, only providing my USB drive ...

Does anyone know of such an app? I would like a cloud storage app that stays synced in the background, where I can select folders to be saved offline on my iPhone and iPad. I would then be able to ...