Apple Thoughts: Not Exactly Tough, But It's Reliable!

"Last month, warranty company SquareTrade shared the results of a study of warranty claims showing a higher accidental damage rate for the iPhone 4 than the iPhone 3GS, with the iPhone 4 having a particular propensity for cracked glass due to the fact that glass is used on both the front and back of the device."

So, as log as you don't drop your iPhone, you should be able to use it longer than any of the other phones on the list. It is, obviously, more fragile because of it's design. But that being said, looking at the accident rates it isn't that much worse than Motorola or HTC. I would have expected the accident rate to be higher.