This document discusses building Windows Phone applications with Silverlight. It begins with an introduction to Windows Phone 7 and outlines the Silverlight and XNA frameworks. It then focuses on developing Windows Phone 7 applications with Silverlight. Key points covered include navigation controls, push notifications, application lifecycles, and using maps, pivots and panoramas. The presentation concludes with a demo of creating a basic "Hello World" application in the simulator and exploring additional Windows Phone 7 features and services.