[ianb]

IE10 has WebSockets: http://caniuse.com/websockets – but TogetherJS doesn't support IE10 either (simply haven't been able to keep up testing with IE in addition to other browsers).

[itsbits]

i know about websockets..actually i was asking about Web RTC which was used for Video and Audio chat here :)

[ianb]

Oh yeah... we use WebRTC when it's available, but don't require it.