I just purchased an iPhone 4. It was available for a bargain, $300. Now I've seen the pics from an iPhone 4 of my colleagues and they are amazing. Clarity. Depth. Sharpness. I've attached the first pic i've taken from my iPhone 4. And I can't help but find with unusual noise / grain layer over the images. Is it just me or should I report to Applecare for a exchange? The attachment is in actual size. 1.5mb.