Matthew DuffieldMatthew Duffield is a .NET architect designing and developing enterprise applications. He specializes in .NET with an emphasis on WPF, Silverlight, and WP7 development. He is a Microsoft MVP in Client Application Development and has an MSCD.NET certiication. He also works in business intelligence, designing and developing solutions for data warehouse and data mining initiatives. You can read his blog at mattduffield.wordpress.com and follow him on Twitter at @mattduffield. Read More Read Less