Check out this gizmag.com article on the VirtuSphere, the best solution to VR immersion I’ve seen. It’s a roughly 9′ tall plastic sphere a human stands inside that rests on rollers. The person inside wears a headset that projects the VR environment onto their eyes, and they can walk and move somewhat naturally within the sphere while the rollers capture their movements. This thing is fantastic. The only component that seems to be missing is a manipulator, ie something you hold in your hands to interact with the VR environment. I’ve got to believe this is an oversight of the article and not the device itself. Anyway it’s easy to imagine an evolved version of these things showing up inside health clubs and amusement parks in the relatively short term, and not too hard to imagine a very refined version of it as part of your entertainment equipment. Right now they go for about $100k a piece though they expect them to be around ~$50k once they’re in full production. If I win tonights megabucks I promise I’ll outfit a room with a dozen of these for full-on battlefield 2 action.