For sometime now, the community has been touting the MVVM pattern as being the best wayto build XAML-based applications. By now, you should be convinced that MVVM isreally the way to go. But then, you start building a real-world Windows 8 application and you encounter all kinds of challenges you hadn’t thought about before. How do I properly structure an application? How do I implement navigation? How do I manage tiles or contracts from MVVM? How do I use Dependency injection correctly? And how do the new data controls in Windows 8 work in combination with MVVM?