The most important Dropbox advantage over OS-integrated solutions is interoperability. I can sync a folder between Mac, Linux, Windows and mobile platforms. The

The most important Dropbox advantage over OS-integrated solutions is interoperability. I can sync a folder between Mac, Linux, Windows and mobile platforms. There is no other product that does it so smoothly, and neither iCloud nor Window Live will ever do that. This new stuff, however, is irrelevant. I just don't care, all I need from Dropbox is to keep syncing a folder between my devices, that's it. They could have spent money on innovating in their core field of competence: syncing. Hey Dropbox, how about seamless syncing with S3 for one? Remote NAS access? Distributed cross-provider virtual filesystems? But no, instead we have this silly file manager.