So one of my friends got an iPhone 3G from her mom, but for some reason she doesn't like it. It's 16GBs and she is probably going to sell it to me for $250. But I don't have the money to pay for service, so if she cuts the service, can I use it as an iPod Touch? I think that it will be better than a Touch since it has a camera and if I wanted to I could always activate it when I felt like it. And is $250 a reasonable price?