We ported our 2D Android/iOS game, "Bouncy Mouse," to HTML5/WebGL. It's on the Chrome Web Store (https://chrome.google.com/webstore/detail/cgdllcbmneiklcmbec...) and doing great.

With WebGL, the performance seems great, and the graphics and effects look sharp too. Audio was definitely an issue, and more work needs to be done there by browser makers. Using WebkitRequestAnimationFrame over setTimeout helps battery life and performance a lot.

If you're interested, you can check it out here – http://chrome.bouncymousegame.com/ – I'm thinking about doing a post about our experiences making this game for mobile and for web, and some of the economics behind game-making as well.