Microsoft isn't finished improving the Surface tablet. This week, the company will release an advanced version of its first tablet called the Surface Pro that's essentially a full-fledged Windows 8 computer crammed into a tablet form factor.  There's an important distinction to be made here: The Surface Pro isn't an iPad or Android tablet competitor like last year's Surface RT. If anything, the Surface Pro is an alternative to thin and light laptops like the MacBook Air and the slew of other Windows-powered Ultrabooks. The cheapest Surface Pro model costs $899, which is in ... Read More