There's been a lot of fuss about the iPhone 4's Gorilla Glass "custom glass" comparable in strength to sapphire crystal but 30 times harder than plastic. Sounds incredible, right? But make no mistake, that front glass panel will still break if dropped. Ok, it took four deliberate attempts to accomplish what you see above but it still happened. Bottom line: like any cellphone, you'll have to worry about more than just scratches. See the destruction after the break.