Fyrd/caniuse — pull request #19 by kanaka (2012-10-09 13:48:33+00:00)
Title: Opera Mobile 12.1 full support for WebSockets

Opera Mobile 12.1 has full WebSocket support enabled:

http://my.opera.com/ODIN/blog/opera-mobile-12-1-with-spdy-web-sockets-flexbox-and-more