So I received my 64GB AT&T iphone 5 on Wednesday, September 26th. I noticed that when I pressed the screen somewhat firmly when the notification center was on the screen, I could see little waves or ripples on the screen. Called Apple about it and they agreed to send me a new one. Got the new one today and noticed the same thing. I can't imagine that I would have gotten two defective iphones with the same exact problem. Do any of you guys have this same issue? If possible, try to have the notification center empty and press firmly on the lower lefthand corner of the screen. Do you notice any waves or ripples? This problem is not limited to the notification center of course - it just seems to be more noticeable to me on that screen because of the background colors and pattern. I notice it in other apps too (Passbook, Optimum app, etc.).