This document provides an agenda for a presentation on developing multi-targeting Windows 8 and Windows Phone 8 apps. The agenda includes discussing the importance of multi-targeting, an ABC on multi-targeting, modeling apps using MVVM, and creating a sample multi-targeting app to demonstrate sharing code across platforms using portable class libraries, applying MVVM, and creating platform-specific views. The presentation aims to provide best practices for multi-targeting apps across Windows 8 and Windows Phone 8 through code sharing and proper design patterns like MVVM.