It's a pretty obvious concept, really: take a semi-transparent dome and project an image on it. Then, stand in the middle and surround yourself with 180-degrees of gaming action. John Nilsson went and patented the concept and is now developing the jDome with an estimated cost of around $125-200. We have some serious reservations about this system, though. That $125-200 pre-order price tag doesn't come with a projector and you'll have to tweak your games' field of view setting to work with the round shape of the dome. What's more, the product assumes you're going to spend your game time standing in front of a dome. Criticisms aside, you can buy a prototype for a bit more -- $6,000 to be exact. Video of the jDome in action after the break.