Here is a list of various samples that make use of DirectXTK.
Windows phone 8
Marble Maze sample for Windows Phone 8
http://code.msdn.microsoft.com/Marble-Maze-sample-for-c9f3706b/view/SourceCode
Windows phone 8
Marble Maze sample for Windows Phone 8
http://code.msdn.microsoft.com/Marble-Maze-sample-for-c9f3706b/view/SourceCode