I might be the only one crazy enough to notice this, but this phone's back is all one piece. Regardless of whether it was a Colorware thing or not, you can tell on all current iPhones that there are two pieces. Added to that, the shine around it suggest that there is some serious curvage along the back instead of around the edges. Although from the looks of it, it could be rubbery.
However, I'm skeptical if this is real, because if you look at the reflection of the computer at the top, it shows the iTunes screen as if an iPhone was connected. Maybe the person has another iPhone or an iPod Touch which is connected, but this one is certainly not.
For my money, I'm split. If it's shooped, it's a damn good shoop. If it's a fake, then that's one hell of a mod. If it's real, then we're getting a one-piece, curvier, shinier, maybe rubberier 8GB iPhone.
Again, I could be crazy.