I think you're wrong. A case can be to protect it when it's not in use, many "socks" of mobile phones are like that. You just pull the phone out of the case when you need it. And it doesn't matter if cases exist for the earlier gen iphones, the new iphone doesn't necessarily have to fit in the old cases. Just look at the variety of size between the generations of iPod.
1/14/10 at 4:27pm