Sprint’s Nexus S 4G has one major difference from the original and that’s the fact that it has a WiMAX radio. It also has Android Gingerbread and goes on sale today, right on schedule. To refresh your memory, this smartphone features a 4-inch curved Super AMOLED screen, a 1GHz Hummingbird chip and NFC capabilities, along with the promise of Google Talk video chat.

Sound good? Well, it will cost you $200 on-contract from Sprint, or $50 less if you’re a brand-new customer and get it from Best Buy.

[Engadget]