Windows 8 has got its interface totally redesigned as compared to previous versions of Windows. Its elegant design Modern UI Style is a new concept of user interface which mainly focuses on usability.
If you are among them who really like the new start screen design then I am sure you will like this simple application for Facebook that lets you create a Facebook cover photo which looks like the new start screen of Windows 8.
The application first asks for your permission to access your account and starts collecting photos from your Timeline. Once you have authorized the app, it will automatically create a start screen cover for you.
Finally you can customize the cover by changing pictures displaying in tiles and changing the background color of the cover.
Link to Windows 8 cover creator