Great point, though I'd point out backups don't have to be distributed or cloud-based. I was thinking it would be interesting to have a protocol (probably buil

Great point, though I'd point out backups don't have to be distributed or cloud-based. I was thinking it would be interesting to have a protocol (probably built on bittorrent) that encrypts your data and backs it up onto other's servers in return for storing some of their encrypted backups on yours.