I'm no aware winning computer hardware designer, but you know what.
Just from a logical/practical standpoint, if I HAD to have a camera lens protruding like that, and I'm very pleased they finally have put in a decent camera and flash unit.
I would, without question have placed a raised area, even an additional "button of metal" on the opposite side, so that when you place it n a flat surface, the naked iPad would sit on the camera ring on one side and my additional button on the other side.
Not rock, due to their being one piece sticking out on one corner of a rectangle.
I accept many will put a case on, which will mean this is a non issue, but really, it's quite bizarre that a so called world best designer, would design a product that rocked on a flat surface.
Very very odd indeed.