I recently joined the IE test team and now have decided to start a blog to put down my thoughts and musings about technology. We will be releasing IE10 soon with the release of Windows 8. A number of features have been authored to improve gaming and media in IE. For my starting post, I would like to point you to windowsteam blog that showcases Contre Jour, an iOS game ported to the web. The game is fast and fluid on IE and utilizes multi-touch heavily.
Also check out versions of asteroids and pong for Windows 8/IE10: Ataris