If I put the iPod touch on a level surface, the accelerometer values do not read level. For example, in iPhysics (the sandbox) and Labyrinth, objects will move toward one of the corners when the device is actually level. I have to tilt the iPod slightly in order for it to think that it is level. I have tested it using iPhysics, Labyrinth, AcceleroLog, Level, and Sensors, all with the same results. Is my iPod defective, or does your iPod do the same?