The open-source Okra Application Framework supports the development of Windows Store applications, in particular those implementing the Model/View/ViewModel (MVVM) pattern. In this developer-focused presentation, Jeff Ferguson walks through the design advantages of the MVVM pattern and how Okra can greatly simplify the development process of building Windows 8 applications using the MVVM pattern. Jeff will use Visual Studio walk through sample Windows 8 applications build with Okra to illustrate the framework's support for navigating between pages, command based navigation, passing arguments to pages, support for search and setting pages, and working with data lists and data sources.