Just heads up I had no problem walking into Apple store this morning and exchanging my phone because of yellow lower right screen. The store staff was great about it and very apologetic. On another note the line must have had at least 500 people in it waiting to get a phone. I am glad I pre ordered. I have been to several launch days and have never seen the line anywhere near that long. Also the only case they had in the store was the black bumper. No other cases from any other manufacturers.