By this I mean, how will the rear screen protectors work? I know you can get rear screen protectors for the iPhone 4/4S to obviously protect the rear but on the iPhone 5, you have the aluminium part on the rear? If rear screen protectors are made available, how will they work as if it is a full protector for the rear, surely they will bubble where the aluminium meets the glass part on the phone ? Does that make any sense?!!!