One of the disappointments that Windows Phone developers have with the Microsoft Windows Phone SDK 7.1 is the number of UI controls in the toolbox. It's less than two dozen -- far less than the typical cornucopia that comes with other UI development kits. The Infragistics NetAdvantage for Windows Phone suite more than doubles the number of controls in the toolbox (and that's without the multiple barcode components, and the Math and Persistence classes). To use the Infragistics package, you'll first need to download and install the Microsoft Windows Phone SDK 7.1. Once you've installed both the Microsoft and Infragistics packages, you can create a new Phone project in Visual Studio by selecting one of the templates in the New Project dialog under the Silverlight for Windows Phone tab. For your first application, you'll need to add the Infragistics controls to the toolbox (they appear in the Choose Items dialog but aren't automatically added to the toolbox).