I had a similar experience as the above poster. My screen on my new iPhone 3GS was cracked. It was in a case. I honestly didn't remember ever dropping it. I went into the Apple store, and explained to them "look I know this sounds like a likely story, but I swear to you I didn't drop my phone, and as you can see, it's in a case with no signs of droppage." The Apple person said "since you aren't complaining about anything else being wrong with the phone, I'll replace your screen free of charge." She took my phone in the back and came out ten minutes later with a new screen, no questions asked. I didn't have to pay a dime. Needless to say, I was stoked. So my advice is the same as the above poster.. go to the Apple store and give it a try...