Using KONA as a framework, you can think of KONA as the Windows 8 equivalent of PRISM, I have created a Windows Store App for Itinerary Hunter.
The solution features distinct projects for UI views, UI logic (view models, converters, etc), services and tests. Interfaces are used throughout to enable mocking for unit tests.
Here’s some screenshots of the app
I've not seen to many examples yet of Kona based apps, so when I saw this I wanted to make sure to highlight it...