AT&T will officially start selling a Windows 8-based tablet device alongside its iPad and Android products later this week. The wireless carrier said that the Samsung ATIV Smart PC will go on sale in its stores on Friday, November 9th for $799.99. Unfortunately, that price also means that AT&T customers will have to pay the full amount for the tablet up front, rather than have it be subsidized under a two year contract like AT&T's many smartphones. The 11.6 inch tablet, which comes with a detachable keyboard, will have a version of Intel's Clover Trail processor, with a clock speed of 1.5GHz. It will also have 64 GB of storage.