The design is quite amateurish. The curvature of the header crowds out the (overly-busy) logo and makes me gag. The drop shadow for it cuts off abruptly at the sides, instead of fading into white. The 'S' for Nexus S is flimsy and generic. In fact, all the icons on the site are pretty ugly.

The site does have simplicity going for it. Apple just seems to execute so much better in this area.