BitTorrent Sync

BitTorrent Sync is starting to sound promising. A good backup solution I think, all you need is 2 PCs in different locations.

I can get a RaspberryPi and 1TB HDD, set it up locally with sync to my server, do the initial sync on my fast LAN connection, then take it to a kind friend's house, plug it in, LAN and network, and leave it running /syncing / backing up my files.

It'd just be a nice Open Source decentralized drop-box I guess