Conference site, registration info http://www.html5devconf.com/
In addition to straight language and HTML5 technology learnings there are talks and sessions devoted to game making from 2D experts like Ben Savage at Sibblingz and 3D WebGL author Dave Williams.
If your geekmeter needs a rest, kick back to a few business strategy sessions with Josh Elman (facebook, twitter), Peter Relan (CEO YouWeb, Crowdstar), Joe Monastiero (VP of Bus Dev) of appMobi and Michael Mullany (CEO of Sencha).
For a web/mobile game developers this easy on the wallet (we wanted real developers to get to enjoy not just executives), heavy on great hands-on sessions and expert technical speakers, is going to be a real treat. Enjoy! http://www.html5devconf.com/