Open a blank safari tab. Do notice certain areas of your iPhone 4S displays white darker, and certain areas displays it lighter? Look at it straight on, not at an angle. "Issue: There is a white strip light in the middle of the phone which is slightly visible." I just got my old one exchanged for a new one, and the genius said it is not normal. On my old one, it was pretty noticeable specially in Reader mode, on my new one it's about half as apparent. You can't see it unless you look for it. Does this happen to everyone?