I have never owned an iPhone before and am wondering if I should buy an AT&T iPhone now or wait for the iPhone 5? I really want a retina display and was thinking of buying the new iPod touch (I currently have 32GB 3rd Gen) but I've been planning on waiting for the iPhone 5 and it really wouldn't make sense to have both.. What should I do? If the iPhone 5 won't be a major update I wouldn't care to purchase an iPhone 4 right now.