Quick update on the new WebRTC features in Chrome 30 (current dev channel, soon to go beta):

• Standards-compliant p2p data channels, including binary support and reliable mode (behind a chrome://flags flag)
• Initial version of the getSources API for enumerating available audio and video capture devices (behind a flag as well)
• Support for sending multiple audio MediaStreamTracks over a PeerConnection
• TURN/TLS support
• DTLS cert caching
• VP8 error concealment
• Opus bitrate control
• Initial version of WebRTC SDK for iOS

Full release notes are at https://groups.google.com/forum/#!topic/discuss-webrtc/_zdJBwP4vNU.