Yes, I know, silly question: anything will scratch if you try hard enough. But what I mean is do I really need a case for the iPhone 4? I haven't used a screen protector for my year-old (almost) iPad, and the screen looks as good as new. So for someone like me who never drops his phone, if I don't bother with any bumper, case or shield, what will my iPhone 4 screen look like after a year's usage where I keep it in my shirt pocket daily? Will it really be scratched up the way old iPods got? Or will it look more like my iPad screen that is basically flawless after many months of daily use?