Why does everyone seem to be assuming that the plastic iPhone (if real) will be a cheaper version of the iPhone instead of an outright replacement? After all the original iPhone was aluminium then the 3G and 3GS that followed were plastic-bodied. That design was slightly thicker than the original too. Apple's design ethic in iOS 7 is too different from the glossiness, chamfered edges and chrome lines of the iPhone 5 (or potential 5S) for it to make sense releasing them as one package. But this move would certainly help Apple to cut costs if nothing else. From what I've seen I think I'll like this design when it's finally out (provided the screen is black on the white-backed model).