I have both problems, which indicate poor construction. It really bothers me , as when I look at it from under the sun, the piece of dust distracts me from whatever I'm doing, and the dead pixels only detract from the screen's beauty. I have taken care of the iPhone 3G 100%, I have had it for a week, and there is not a scratch on the chrome or on the plastic back. Should I exchange it and get a new iPhone 3G? I have the black 16GB model.