Even after a few defects, and only one that truly bothered me, the slightly chipped off Apple logo, I decided right there in the store before I reached the Genius Bar not to exchange it. Why? I've seen five different iPhone 3G screens including mine, and mine is just a lot better than every panel I've seen. The first that I personally got was too yellow and lacked a decent contrast ratio and vibrance, which is what I exchanged the second that I got my phone. From what I saw in the store, the panels were either lacking vividness and sharpness and some were a little too saturated. I didn't see one that looked as great as mine, so instead of taking a chance, I can deal with a few small defects as long as I get the best screen, which I definitely have. It's not too yellow at all, the vibrance and vividness is absolutely perfect, whites are pure and blacks are deep. I really have no complaints with the screen I have now. It's like the difference between all of the TVs you see in a store. Compared to every iPhone 3G I've seen, mine has the best screen by a noticeable amount, and that's a huge deal to me.