WPF/E Cool Application
WPF/E is a subset of WPF, and stands for "Windows Presentation Foundation Everywhere". It is basically a mobile version of WPF, based on XAML and Javascript. 3D features are not included, but XPS, vector-based drawing, and hardware acceleration, are.
There is a very cool WPF/E sample at Channel 9. This WPF/E application allows user to flip through the photo album like flipping physical magazines’ pages. The experience of turning the page uses XAML image brushes and trigonometry functions written in JavaScript.
Go to this link to experience the page turner application.
There are more samples at https://channel9.msdn.com/playground/wpfe/ that you can play around.
You may also download the WPF/E SDK. Documentation and samples are included in the SDK.