Have you ever wondered "How did that dev do that"? Listen to Domenico Dell'Olio and Nicola Delfino, two Microsoft employees from Rome, tell the story of how they created the popular running app, Caledos Runner, for Windows Phone. What services do they use? How do they make money? How did they get started? Then read more about how to get started with Visual Studio, Game Development and Windows Azure.
You can then check out their Caledos Runner and other apps here.