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, upgrades and keeping their games up to date.
Dave Perry writes on his blog about them running WOW on on iPad over Gaikai, and it looks pretty neat.
But as it looks really promising I really hope Gaikai pulls this off.
You can read more about it on DPerry.com and touchArcade.com.