Who will amaze you ?

The trend, perhaps unsurprisingly, is moving towards sharing between people you know and trust. More open networks such as BitTorrent can be dangerous to business and private people for a variety of obvious reasons.

http://oneswarm.cs.washington.edu/screencasts_overview.html#screencast_overview

This looks like a next gen FreeNet, albeit simpler and less ambitious, but once again, more suitable for real world use.

http://allmydata.org/~warner/pycon-tahoe.html