In late April, the launch of the Sprint Nexus S 4G smartphone was confirmed for May 8. May 8 was yesterday and the smartphone hit store shelves with Sprint and Best Buy locations offering the device up for buyers. The Nexus S 4G operates on the Sprint WiMax network and has a really cool contour display. The screen of the smartphone has a slight curve to it that mimics the curve of the phone itself. The case of the phone is rounded and smooth with a glossy black color.