BitTorrent Sync seems to have done a really good job of making a decentralized system easy to use. Their pre-shared-key method of connecting computers is reall

BitTorrent Sync seems to have done a really good job of making a decentralized system easy to use. Their pre-shared-key method of connecting computers is really simple for people to understand, and supports a wide variety of potential use cases. Incidentally, I'm working on an open-source competitor to btsync called clearskies (https://github.com/jewel/clearskies https://github.com/jewel/clearskies).