Infragistics, one of the top-notch control vendors for Silverlight, just launched, Quince, a User Experience Pattern Explorer. I have been a fan of design patterns ever since my undergraduate days studying Christopher Alexander’s Pattern Language book in architecture school. Now Infragistics has created a very cool Silverlight site to browse and understand User Experience patterns.
In my opinion, it is a great example of a Silverlight application, beautiful, responsive, appropriate, fun. Read here about how and why they built it. Great job!