Despite the many advantages of Amazon SimpleDB and Visual Studio 2008, the one big gottcha is that Visual Studio 2008's design-time tool expects a traditional relational database. This code sample uses a proxy class and the ObjectDataSource object in Visual Studio to trick VS into thinking that SimpleDB is a native data source. In the end things looks and feel like a normal ASP.NET data-bound project at least to VS.
The intent of this project is to serve as a "copy and adapt" cookbook for your own project, and your own data. Once you load the sample data and play with it "as is" in Visual Studio 2008, you'll find out that integrating VS with Amazon SimpleDB is, well, simple!