The last thing between us and the sandwiches was Muhammed Thanish on WebRTC and it’s various applications. A couple of interesting sites he mentioned built on WebRTC – js.att.io, which makes real phone calls from your browser; peer-server.com, which lets you turn your browser into a web server; webtorrent, which lets you torrent stuff without needing Bittorrent; then there’s Uproxy, which does what the TOR network does, except in your browser.
Definitely an eye-opener there. The most famous examples, however, are probably Chromecast and Google Hangouts. To illustrate, he starts a slightly glitchy live webcam streaming example that fails the first two times and then works, setting up a Peer-to-peer video streaming page between a couple of people right there. Look ma, we’re on video!