CowboyRobot writes "It's looking like Microsoft is planning to replace its underachieving Surface tablet with two new products, but it may need three to finally have success with the Surface. Three tablets would provide an entry point and an upgrade path. Multiple Surface RT models would help Windows RT survive OEM skepticism. Microsoft needs device fanfare to accompany Windows 8.1, and to coincide with enterprise hardware upgrades. If the company releases one of the models before the end of the year, the device would arrive in time not only for the holiday season, but also to cash in on user interest in Windows 8.1, which will be released later this fall. Surface devices released next year, meanwhile, could capitalize on enterprise hardware upgrades, which are expected to pick up as Windows XP's April 8, 2014 end-of-service date nears."