I'm curious about the hardness of glass plate in front vs. rear of an iPhone. For a bit more than a year I've owned an iPod Touch, and I'm quite excited with its front glass. I don't use any kind of screen protector for it (but I use silicon case for rear body though, you know it's prone to scratch as hell). I bring it quite often, put it in pocket (no coins/key though). I treat it carefully (but not OCD enough) and I'm impressed, no scratch at all till today on this iPod's front glass (not so much with its rear). Now while I'm upgrading to an iPhone 4s, I'm curious .. do Apple use identical or even better glass for iPhone? If so, do Apple use the same identical glass on iPhone's front and rear face? If you have the real truth, that would certainly help, but if you don't, please share your experience with your iPhone 4/4s. Does the rear tend to scratch more than front, or equally no? equally yes? I realize maybe many of us put iPhone on table with front side up. But I think if Apple put at least the same glass we find on iPod touch, it'll sufficiently resist to scratches.