The Windows RT 8.1 offering from Nokia will sell for $400 with a two-year contract at AT&T; $200 if you purchase it with a Lumia 925, 1020 or 1520. Verizon's deal is fairly similar, with a $400 price point and a two year contract -- but Verizon will be carrying the tablet in red in addition to the default black.
The tablet has specs similar to the Surface 2, with a few more bits of bundled software, and some decently beefy hardware -- 8000 mAh battery, a Snapdragon 800 and more. The Nokia version of the RT tablet has its own keyboard cover costing around $150, adding another 5 hours of battery life.
Outside of contract, the tablet will cost $450.