UPDATE:Rainbow looking circle

[flyhigh]

I just noticed this on mine tonight while I was out at a store. For me it is a rectangular shaped area in the center of the screen. It does look like a bit of an oil slick and has that rainbow look to it. It is not on the surface of the screen and can not be wiped away. I remembered seeing this thread and came home to look into it. Oddly enough, as I was firing up PPCgeeks and getting ready to search for "rainbow" I looked at my TP's screen and the rainbow is gone! I think on the first page someone mentioned that it is only noticeable under florescent lighting. That's probably what they had in the store and why I don't notice it here. I'll look into that more. If I do decide to claim it to sprint, I just hope their store has florescent lighting as well.