Here's an interesting project I came across:
The game is Mastermind, which many people already know. What caught my attention is that it's done in C++ and XAML. To quote Tyler Whitney's blog post
The Mastermind code sample demonstrates how to create a simple Silverlight
storyboard in Expression Blend 3, and then provide the code for the state
transitions in Microsoft Visual Studio 2008. You can also see how to create
brushes programmatically and how to add a title bar to a Silverlight-based app.The code
is on the Microsoft Code Gallery (only Microsoft Employees can publish there) and Tyler has been updating the article over the summer. Nice way to see how to combine two technologies some people would never thought have combining.