Networking in the XNA Framework: Build Multiplayer Games
Want to develop games that can multiple of your friends can play cooperatively or head-to-head?
Creating multiplayer games using XNA Game Studio, requires networking support in the XNA Framework for both Windows and Xbox 360. the XNA Framework released with XNA Game Studio 2.0, includes support for networked games. See the GDC talk by Shawn Hargreaves to learn about networking in the XNA Framework, what is supported and what’s not, and how you can enable multiplayer support in your games. Download the ppt deck and presentation recording from http://www.microsoft.com/downloads/details.aspx?FamilyId=E031C413-43F1-4C9E-92D2-7CDD64864D02&displaylang=en