That's fucken amazing. This breaks so many boundaries in gaming - now, suddenly, there's a reason to buy that big fuckoff TV. I can't describe the number of times I've tried to move my head to look around some object onscreen... nor can I describe how overjoyed I'd be for that tactic to actually *work.*

Relatively easy answer to the multi-player question: multiple screens.

Neat gimmick, not sure it'd be terribly useful in advancing gameplay.