What is the design of Windows 8 called?

It appears that Microsoft is changing from calling the design UI of Windows 8 “Metro” to “Modern UI”.  Both The Verge and Gizmodo mentioned that Microsoft has begun listing events about the “Modern UI.”  As The Verge wrote, “Microsoft may have nixed its “Metro” branding for the new tile-based design in Windows 8 and Windows Phone, but the company appears to be split over its replacement naming. Earlier this week it was reported that references to “Metro-style applications” would become “Windows 8 applications,” and that the “Metro user interface” would be switched to “Windows 8 user interface.” However, Microsoft employees have started using “Modern UI Style” to refer to the new Windows 8 Start Screen and “Modern UI” design in reference to Windows 8 apps.”

Three of the writers at All That Nerdy Stuff upgraded to the ninety day release version of Windows 8 (you can get the Preview Version here) over the weekend so that we could begin using the new interface.  As we were writing up a list of topics we’d like to cover on the new system, there was a short discussion over why there are three names for the tile-based design.  Jason began listing ideas using the words “Metro,” “Modern UI,” and “Win8.” After a quick discussion of the difference of the three terms (the operating system, the code name, the current name, and colloquial terms), we got around to the point of ”What should we call it on the site?”  And, well, we decided that the best idea is to mention all three.  You readers probably have a favorite, which you’re more than welcome to mention in the comment section.  For now, you’ll be seeing references to Windows 8, Metro, AND Modern UI on this blog.  Over the next couple months, we will be focused on posting a large number of tutorials, previews, walk-throughs, and reviews on the components of the new design.