I got an iPhone 3GS last week from the Apple screen and the next day I looked at my screen and it had a big scratch through it. I thought this was impossible since I only carried it in a pocket (no keys) and although I didn't have a screen protector I didn't think it was a big deal (my old phone didn't scratch and I had it for a year and carried it the same way). So I took the phone back today and the manager of the Apple store was nice enough to exchange it for a brand new 3GS. Now here's the weird part: When I looked at my first 3GS screen through polarized sunglass lenses, the image on the screen would disappear when viewed at certain angles. This isn't unexpected, I've noticed that behavior with many laptop screens - it has to do with the way laptop screens work (google LCDs and polarization). However, my new iPhone screen is viewable at ALL ANGLES through a polarized sunglass lens. There's a small amount of color distortion due to the lens but the image on the screen never disappears. This tells me that there is something fundamentally different about my new iPhone 3GS screen compared to the first 3GS that I bought last week. Does anybody have any ideas what this could signify?