Another centralized service, sadly. I've decided that whenever possible, I will seek out decentralized solutions instead.

Looking for a decentralized, peer-to-peer file sharing and synchronization solution? I've been using BitTorrent Sync as a replacement for Dropbox, and so far I've been very pleased with it. Unlimited storage, no 3rd-party servers involved, and less CPU usage and UI lag than Dropbox. Did I mention that it's free? Check it out: http://labs.bittorrent.com/experiments/sync.html