Windows 8 from Microsoft is a big shift away from traditional Windows. As well a running on desktops, the new operating system will also be showcased on the upcoming Microsoft Surface.
The biggest shift visually that has been applied to Windows 8 is moving away from the Start button. Users now use the charms bar. Another add-on is how social Windows 8 has become. With Facebook, people email and messaging all prominently displayed. In conclusion, I think Windows 8 is a good clean OS.