Made by Nintendo recently, a couple of new patents have been made recently dealing with displacement mapping. This would take an image and "displace" the y values of the image, producing real 3d textures, with very very low polygon counts. The patent involves hardware optimization for it, and another thing that explains rendering all the 3d in the game on a 2d plane. That would make it require a lot LESS power, meaning with low end equipment, Revolution can have better graphics than X360, and on par with PS3.