The Samsung Nexus S will be available on T-Mobile USA starting Dec. 16. In the UK, you can get it at Carphone warehouse starting Dec. 20. Pricing still has not been announced.
Samsung's full press release is after the break.
Update: Best Buy has announced pricing:
Customers can purchase Nexus S for $529 as an unlocked phone without a contract. Nexus S optimized for T-Mobile’s network is available for $199 with a two-year service agreement and qualifying voice and data plan.
And so has CW: From £35 on contract to £549 SIM-free