Hi all. Looking for your advice on if I should seek a replacement iPhone. I got my preorder iPhone on Wednesday, and have been using it ever since. Yesterday, a day later, I noticed it was making a clicking noise when I applied a slight amount of pressure with my finger tip to the back of the phone, sort of the midway point from top to bottom and towards the left side of the phone. It's easily reproducible and starting to drive me nuts as i can hear it with just about any touch I make on the phone. So, am I the only one with this problem? If so, I'm headed to talk to Apple ASAP.