I was not impressed with how wide the iPhone Duo is when folded closed. The whole idea is supposed to be something like a cell phone that expands to something like an iPad. They basically copied the Samsung Galaxy or similar phones with no real innovation.
This shows how Apple actually thought through the issue instead of just doing the most obvious thing. Because if you start with regular phone dimensions, then you wind up with basically a square screen when open, which is not natural and not useful.
