Techcrunch's John Biggs did a thorough write-up of his hands-on experience with Microsoft's Windows 8 tablet OS.
It's worth a read considering Microsoft's precarious situation of being the primary OS solution for desktop computing...but tablets are nipping at their tails. Both Google and Apple have viable tablet OS' and a head start.
Success for Microsoft is not purely an OS issue but is primarily a price, hardware and developer support challenge.
Techcrunch Previewing the future - hands-on with Windows 8