Windows 8 is the reimagining of Windows. Sure. But, let’s not forget, Windows 8 didn’t invent the new design language, Windows Phone did. To be fair Windows Media Center introduced the first low-chrome Microsoft UI for the 10 foot experience. Zune, then, adopted that clean approach and adjusted it for a small touch screen.
But, it was Windows Phone that took what we used to call the Metro style to the limit. That team created a crisp and clean design language that was magically pervasive and universally appreciated. Windows 8.0 adopted it, Windows 8.1 gets even more like Phone.