I've dropped my iPhone 3G only once. And it was a potentially horrific drop too. I was at the Verizon Center in DC for game 5 of the Penguins-Capitals series during the 2009 playoffs. Ovechkin scored with only a few minutes remaining to tie it up. After celebrating, I went to take the iPhone out and it slipped out of my hand, falling about 4 feet onto the plastic/metal/wood of the risers. As I reached down to grab it, it slipped through a crack of the risers and fell at least 10 feet onto the concrete below in the recesses of the Verizon Center. A VC employee retrieved it for me within 10 minutes and I was ecstatic to see that the screen was perfect and there was like a small "dent" on the corner.
Also, the Capitals lost in overtime. If my iPhone had been destroyed too, I may have murdered a baby.