Using the Model View View-Model (MVVM) pattern, .NET developers can create more robust and powerful Silverlight and WPF applications, get to market more rapidly, and simplify both maintenance and upgrades. In MVVM Unleashed, two-time Microsoft MVP Mike Brown demonstrates how to use MVVM to overcome many of the most difficult challenges traditionally associated with Silverlight and WPF development. Brown presents realistic code samples illuminating each "pain point" and showing how MVVM and its supporting patterns can be used to address them. This book goes far beyond theory, presenting useful advice and code derived from the author's four years' experience building production WPF and Silverlight applications. Brown shows how to leverage MVVM's potential benefits for maintainability, testability, "blendability," and portability. In addition, he thoroughly covers closely-related "supporting patterns" for efficiently structuring applications - including patterns that have evolved from the practice of minimizing code-behind. MVVM Unleashed will be valuable to every Silverlight and WPF developer, including the growing number of developers now building Windows Phone 7 apps.