I was getting out of my truck and my iphone 3gs fell out and landed on the gravel.It was in a case completely enclosed. However, when I picked it up the screen was off and it won't turn on at all. I've tried holding down power/home, I've tried charging it, and I've tried connecting to itunes. Nothing happens at all. Screen just stays black like it's off. Any thoughts on how to get it working? It is still under warranty, so if no one can tell me how to fix it do you think they will replace it at the applestore? There isn't a single scratch or crack on the phone so would they be able to tell I dropped it? Should I tell them I dropped it, or just tell them it stopped working?