Excerpt - Microsoft Corp. has taken the wraps off "Surface," a coffee-table shaped computer that responds to touch and to special bar codes attached to everyday objects. The machines, which Microsoft planned to debut Wednesday at a technology conference in Carlsbad, Calif., are set to arrive in November in T-Mobile USA stores and properties owned by Starwood Hotels & Resorts Worldwide Inc. and Harrah's Entertainment Inc. Surface is essentially a Windows Vista PC tucked inside a shiny black table base, topped with a 30-inch touchscreen in a clear acrylic frame. Five cameras that can sense nearby objects are mounted beneath...