It's black and shiny, built with glossy plastic. Up close, though, it's "got this curve to it." While the screen, which our source thinks is the same 4-inch AMOLED affair from the Galaxy series, is flat, the front is "sort of concave" with hard edges. And the back is curved. The tapering makes it feel thinner than Galaxy S, though it might be about the same thickness. "It feels really similar to the Galaxy S in a lot ways."
At first blush, it's a little disappointing that Google possibly isn't pushing things forward in the same way they did with the Nexus One, since it seems like the Nexus Two is a refreshed Galaxy phone. On the other hand, it says a lot that the Android ecosystem is so stocked with high-powered phones, from the Evo to the Droid X, that even Google won't radically jump ahead of its partners with a new flagship. Hopefully their plan for selling it is a little better.