[marssaxman]

I tried out an experience last night called "SandboxVR" which would be the perfect customer for such a system - you walk into a room equipped with motion-tracker cameras, the staff straps you into VR gear, then you play an immersive video game with your friends. The games are designed so you don't need to move around much, because a flashing red grid appears in your vision if you get too close to the walls; with a moving floor, they could give you a lot more freedom to explore.