Anybody knows what browsers support html5 websocket? Thanks!
Keep an eye on this page on wikipedia Comparison of layout engines HTML 5. WebSocket isn't there right now, but it should be updated in the near future.
Websockets update: KAAZING is a websockets server which comes with a javascript library to simulate websockets for current browsers: (from the architecture overview)
The current implementation of Kaazing Gateway is based on the HTML 5 standard. Once browsers support full-duplex connectivity, per the HTML 5 specification, there is no need to change any server or client code; applications will automatically take advantage of the native implementations of HTML 5's server-sent events and Web sockets with improved performance.
Update 2009-Dec-11: Google Chrome developer channel release 4.0.249.0 now supports web sockets.
Not a single one AFAICT (though it could quite easily be "emulated" using Flash and/or Silverlight and/or a Java applet)
Google Chrome supports it since December 2009 http://blog.chromium.org/2009/12/web-sockets-now-available-in-google.html
It seems to work with Safari 4 right now, check out this implementation using Node JS : http://jeffkreeftmeijer.com/2010/experimenting-with-node-js/