Three things announced by Google recently that may be of interest:

1) New Game : The Conference for HTML5 Game Developers - November 1-2, 2011 in San Francisco, CA - http://www.newgameconf.com/

2) If you're going to PAX Dev, check out the HTML5 Game Jam (contest): http://warpzone-html5.appspot.com/

3) Four HTML5 hackathons in New York, Chicago, Seattle and Mountain View: http://bit.ly/mX8H4w