With the release of iOS 4 there are a lot of updates to apps being released, enabling them to take advantage of the new features. For a complete list of all the apps that have been tested and proved working
Playing WOW on the iPad
The game streaming service Gaikai is aiming to take gaming in to the cloud. With hosting the game on their servers and letting you just stream them down to your computer. This would allow users to worry less about hardware,