Xi3, Valve join forces on a compact gaming PC for your HDTV

LAS VEGAS—Modular PC manufacturer Xi3 makes some pretty tiny machines, and now we know that it's working on something big. The company is working on a mini-PC that's small enough to fit in your hand, yet powerful enough to play mid-level PC games on an HD display. More importantly, Valve Software is investing in the company to help them pull it off. The prototype is called Piston: Xi3 claims the...