MSDN and TechNet users are now hammering Microsoft's download servers and getting their hands for the first time on the final Windows 8 build. The various betas have been used and reviewed extensively; what's new in RTM?

The truth is, not a whole lot. The Release Preview was a good representation of what Windows 8 is like to use. Indeed, all the major design and user interface points of Windows 8 have been frozen since the release of the Consumer Preview.

The visible changes are essentially all graphical, and they start fairly early on. We've known since March that Windows 8 would have a tutorial when you first log on, but it hasn't been present in any of the beta builds. It's here in the RTM.