I am thinking of purchasing an iphone 3gs off of ebay. I live outside the states. This is the first time I buy a locked phone, as in locked to 1 carrier. So how is the process? I know there is no jailbreak yet but does that mean I can't use the phone at all? or will it act like a phone without a sim? In other words is it possible to activate the device and use it as if it was an ipod with a camera while I wait for a jailbreak to come out so I can unlock it to work with my carrier?