Interesting--does the above-mentioned feature mean that nginx can finally be put in front of a websocket server (e.g., socket.io)?
I recommend using Server-Sent Events instead. You get nearly same API for realtime server->client push, and they're HTTP-compatible:
http://html5doctor.com/server-sent-events/ http://speakerdeck.com/u/pornel/p/server-sent-events
edit: that's for version 1.0.X though, not sure about 1.1