Hello Firefox! Mozilla's browser gets built-in WebRTC video chat
gigaom.com
gigaom.com
a free full-stack WebRTC solution, with backend servers, clients, API.
* Mozilla provides the OAuth 2.0 authentication, the signaling server, and the clients
* Tokbox (Telefonica) provides STUN/TURN server http://tokbox.com
* Nexmo provides SMS service / MSISDN gateway http://nexmo.com
Although this is an awesome development, group video would have made it a killer application.
(for now, you can use https://opentokrtc.com/ to try out OpenTok's group video calling support)