hey guys, I was wondering if anyone could help. I'm traveling from the UK to Ohio in a couple of weeks, and will be taking my iphone 3gs along for the entertainment! I was wondering, do i need a U.S adapter to charge my phone over there or can i simply plug it into any computer ( that doesnt have itunes on it) using the usb and charge it that way? Im not sure if the computer needs Itunes on it for it to recognise the phone and charge it? or does this not matter?