This design leaves me conflicted. I told myself that I wouldn't want a new iphone unless it had a larger, higher resolution screen. Well, I got half of that, and Apple still has the best screen usability and browser experience. However, the EVO 4G has a wonderful screen (I've held and used an HD2), and I like Android (I actually have a nexus one right now). I don't care about the front-facing camera, although the flash is nice.
As for the design, I'm conflicted. I like the metal rim and the "gaps." However, the back is confusing. In one aspect, the design is attractive because it reflects the minimalism of the apple tv or the mac mini. In another, the design has a rigidity that has no concessions to ergonomics. The rounded edges that are concessions to ergonomics can also be beautiful, and I still prefer the first gen iPhone design the most. It seems that they are too scared of signal issues to go back to that (or perhaps they feel a regression is bad in principle). The HTC legend has proved you can go aluminum and have good signal quality.