Overview

Although widely used, currently popular peer-to-peer (P2P) applications offer no user privacy. By design, services like BitTorrent and Gnutella share data with anyone that asks for it, allowing a third-party to systematically monitor user behavior. As a result, using a P2P network means that your online activities become public knowledge.

OneSwarm is a new peer-to-peer tool that provides users with explicit control over their privacy by letting them determine how data is shared. Instead of sharing data indiscriminately, data shared with OneSwarm can be made public, it can be shared with friends, shared with some friends but not others, and so forth. We call this friend-to-friend (F2F) data sharing. OneSwarm is:

Privacy preserving: OneSwarm uses source address rewriting to protect user privacy. Instead of always transmitting data directly from sender to receiver (immediately identifying both), OneSwarm may forward data through multiple intermedaries, obscuring the identity of both sender and receiver. For more details, check out the OneSwarm overview screencast or our papers.
User friendly: OneSwarm’s interface is web-based and supports real-time transcoding of many audio and video formats for in-browser playback, eliminating the need for casual users to master a new application’s interface or search for custom media codecs.
Open: OneSwarm is freely available and built on existing standards. OneSwarm can operate as a fully backwards compatible BitTorrent client, and its friend-to-friend data sharing features are built on cryptographic standards, e.g., X.509 certificates and SSL encryption.
For more details, check out FAQ, wiki, forum, and screencasts.

It could be....I cant find an api for the project. Contacting them directly might be the way to go.

Good idea.  Note that this is Washington University research just published less than a month ago, and the program version is only 0.7, even though it has been used for a year and has been downloaded a hundred-thousand times.  I think this OneSwam has great potential because (1) it allows customized privacy per-file and per-search, (2) has performance almost comparable to regular bittorrent, and (3) is compatible with regular bittorrents (so there is already a large base of files connected to the network from the get go).
 
But yeah, this could be the base project for a bitcoin enabled file sharing service as discussed in the other thread.

Anyway, I haven't even tried this out yet myself.  I would be happy to friend anyone on this bitcoin forum (preferably those with at least two stars under their name)...

Oh, am I not downloading anything because I have no friends?