ARFetch!

ARFetch is an augmented reality game that allows you to control a small virtual dog using the tracking image of a printed page, or the back of any U.S. one-dollar bill. Make him race around collecting discs, bouncing balls and keeping the lawn free of gophers, hedgehogs and UFOs Only devices with ARM7 and above are supported. ARMv7:iPhone 3GS, iPod touch 3rd gen (32gb & 64gb), iPhone 4, iPod touch 4th gen, iPhone 4S, iPad 1 and iPad 2.