There is none-too-much shocking inside of the Nexus S—the gaping-hole-in-the-middle motherboard is peculiar—but the real reason we wanted to see it splayed apart was to learn the secrets of the Contour Display. And… we’re disappointed. [iFixit]
https://gizmodo.com/samsung-nexus-s-review-how-to-build-an-android-phone-f-5713986
