[mtgx]

I remember reading about a P2P API inside Chrome, but that may have been just an experimental mode for WebRTC at the time. Having a built-in bittorrent technology would be a big addition to browsers, especially if they intend to use the technology for broadcasts to a lot of people in the future through WebRTC.

[kzahel]

It seems like in about 6 months or so (crystal ball reading) this will be available in chrome stable. (createDataChannel is not yet implemented even in Chromium trunk)

It's already possible to participate in BitTorrent swarms in pure javascript with only websockets and typed arrays. (https://github.com/kzahel/jstorrent) It of course requires that BitTorrent clients know how to accept websocket connections and use websocket frames to emulate raw socket data (which is not yet the case, but very well could be)