For real! Check out g.co/lightsaber to pair your phone with your computer, then use it as a controller:
The 3D graphics you see were built with WebGL and the 3D renders pretty damn fast on your computer. The real-time communication between your phone and computer are thanks to WebRTC and WebSockets, and there’s no lag or latency that I could notice. No plug-ins needed. Yes, Google is showing off its web chops with this experience.
If you’re super into how Google did this, head over to its developer case study.
[YouTube]