My iPhone 3gs is about a week old, and was sitting on my desk next to me at my laptop and vibrated. So i went to check and it was off. The battery was at about 60%. So i figured maybe it needed to be plugged into a charger, so i did. Nothing. My Powerbook won't recognize it either. It's now been plugged into the wall charger for about 45 minutes and it's still unresponsive. Any ideas on anything I could do to get this thing on again? Any help would be greatly appreciated! thanks!