http://www.pcworld.com/article/2359241/how-steam-in-home-str...
http://shield.nvidia.co.uk/play-pc-games/
http://store.steampowered.com/streaming/
This guy isn't running it from AWS though, like I said. He's running it from a "server" that's right in front of him. By the way, have you ever tried RDCing a remote Windows machine and done some trivial tasks in the GUI?