Microsoft’s OS of the future will make its way to a range of devices, but all eyes are on one market in particular: tablets. Microsoft is beyond focused on proving that it can compete in the tablet space, which is currently dominated by Apple’s iPad line. WinRumors sat down with an Apple iPad 2 running the latest iOS 5 beta and a Windows 8 tablet prototype on Thursday, and spent nearly 11 minutes comparing the two slates on camera. The video runs through a wide range of functions, giving users a good idea of how the two devices match up. Of course, the Windows 8 build on the tablet in the video is an early beta that is likely about a year away from release, but Microsoft chose to make the build available to the public so it’s obviously open season for showdowns. WinRumors’ full head-to-head video comparison follows below.