Just 5 days after Sprint put the Nexus S 4G on sale, Wirefly has discounted the price – you can get it from them for $99.99 after a new two-year contract. Existing customers can get upgraded to it for $150. Sprint debuted the phone for $200 on a two-year contract. The Nexus S 4G is nothing too far from the original save for the WiMax radio inside. You’re getting a stock Android 2.3 experience with a 1GHz processor, a 4 inch display, 16GB of internal storage, and both front and back cameras. Head on over to Wirefly if you want to take advantage.