I think a week ago it was featured on some tv show (one of those like "How'd they do that?" or something). This company rep dude took a sheet about table size and bent the whole thing pretty far, then took a pair of car keys and scratched the heck out of it. As far as I could see on the TV it was still clear (probably a million little scratches though). Neat stuff.
Oh FUNNY: One of my co-workers got an iPhone 4 about six months ago. He was digging a hole and his phone dropped out of his pocket at some point behind him. He had no idea but he was throwing big rocks out of the hole right onto the iPhone. The glass was totally shattered. You can barely make out whats on the phone but it does still work perfectly. It looks like one of those joke wallpaper things it so bad.