I think that so far I am one of the lucky ones, but I cannot tell you how many times I have seen friends drop their iPhones or iPod touches and crack the screens! Now, don't get me wrong - an iPhone is an amazingly useful device, and I am totally in love with mine. However, I was reluctant to get one in the first place because I know that I am such a clumsy person. In fact, I don't even want to tell this story, but I did drop one of my older cell phones in the toilet, which totally destroyed it.
What happened was, I had it in my purse, so when I went to leave the stall of the bathroom, it somehow flipped out and went into the toilet. Completely tragic, but I was scared about the same fate for my expensive iPhone device. Luckily for me, my iPhone is still completely intact (knock on wood), but you better believe that I am being so careful with it. I have had about four or five friends crack the screens on their iPhones and need iPhone repair. Luckily, it is fairly inexpensive, but I am doing my best to keep the screen of my device protected!