I was thinking about how one could use the Oculus Rift in the world of MAME.
I thought it might be cool to create a 3D virtual arcade you could walk around in wearing the Rift of course.
You would have whatever cabinets you wanted in the arcade and just be able to walk up to one and start playing.
While you were playing the game, you'd be standing at the cabinet still and be able to turn your head and see more cabinets to either side.
Well beyond my abilties to accomplish nor do I own a Rift, I just thought it would be really cool.