NVIDIA unveils Project Shield, a handheld android gaming device powered by a 72-core NVIDIA GeForce GPU/Quad-core A15 CPU. This will include support for playing PC games on NVIDIA-powered systems as well, as outlined on this page:

Project SHIELD gives you the power to wirelessly access your GeForce® GTX-powered computer from the comfort of your couch. Play your favorite PC games, including great titles from Steam, on a full-size game controller with ultra-low latency thanks to Project SHIELD's game-speed Wi-Fi and the fast performance of GeForce GTX 600 GPUs.