The new OS is a drastic break from previous Windows versions, and the company has learned a lot from the two competitors that most threaten its existence: Apple and Google. What we’ve seen of Windows 8 shows a clear emphasis on touch-capable interfaces and optimization for smaller devices like tablets.
10. Windows Phone 7′s theme and UI
Microsoft confirmed that Windows eight can have a tiles-based interface. Known as Immersive, this GUI is supposed to be utilized in full-screen mode, and is perhaps targeted at tablets running Windows eight.