I was just wondering if I'm the only one who kept their original iPhone 4 that was shipped on the release day? I've been reading a bunch of threads saying that people have exchanged them for a new iPhone 4 because of the problems. I have a few of them, yellow tint to pictures, rattle when I shake it, freezes up every once in a while. But it doesn't bother me to the point where I want a replacement. But should I? That's all I was wondering though.