Not only games are a healthy source for innovative interface design. Hollywood also always tries to look into the future and create impressive interfaces in their sci-fi and action movies. Most of the times the interfaces only have to look cool, and any professional would immediately spot the errors. But sometimes they are really impressive and cause jealous interaction designers, like in The Island and Majority Minority Report. A lot of these interfaces where designed by Mark Coleran. Check out what he creates
Another interface, which isn’t designed by Coleran, is the Minority Report interface. Luke Wroblewski wrote an article about this futuristic (but also realistic) interface.