Probably something a lot of people were waiting for. The Google Nexus S is now available unlocked at BestBuy for $529. You can also get it for a subsidized rate with a two-year contract from T-Mobile for $199. Powered by Android 2.3 a.k.a. Gingerbread, the Nexus S features a beautiful 4-inch contour display, 16GB built-in memory and a whole bunch of UI improvements over Froyo.