Microsoft is on the cusp of giving Windows 8 the green light for RTM and while we have heard that 9200 is the official build, Microsoft has yet to come forward to formally announce that this build is the RTM.
The image you see above is from build 9200 and shows off the new theme that will ship with Windows 8. It is expected that after Microsoft signs off on the RTM, it will hit technet and several other Microsoft developer channels in the near future.
Windows 8 will be released on October 26 and along with that will come Microsoft's first party tablet, the Surface RT; the Surface Pro will ship at a later date.
Also, the torrent that is floating around that claims to be the 9200 build of Windows 8 is fake.
Thanks for the tip windows4live and Niekess!