So, I picked up an iphone last night despite my previous idea of waiting until black friday. I've also ordered an invisibleshield for the iphone but it won't come in for at least a week or possibly longer. How important is it that I get a case/cover on this thing ASAP? I was thinking about buying $10 screen protectors from the AT&T store but they only protect the front and not the back or the chrome edges. I really don't want this thing to get all scratched up. EDIT: Also, are there any good ways to mount the iPhone in a 2004 Mazda 3S?