Now, there’s a practical, hands-on guide to mastering game development for Windows Phone 7 with Visual C# 2010 and XNA Game Studio . One step at a time, this book teaches all facets of mobile game development, from design through publishing via Microsoft’s Marketplace. Top game development author Jonathan S. Harbour starts with the absolute basics, making Windows Phone game development accessible even to programmers who’ve never written a game before. Then, one step at a time, he shows how to use Microsoft’s free XNA toolset to design .