Support for the WCF net.tcp protocol is the key feature addition in the core of WCF offering in Silverlight 4 Beta.

Read more about the benefits and limitations of the net.tcp protocol in Silverlight 4 to decide if it is a good fit for your application. You can also check out a walk-through of adding net.tcp support to a pub\sub Silverlight application or inspect the code of the sample to get a better idea of what’s involved in creating an end to end solution using net.tcp in Silverlight.

Tomasz Janczuk
Development Manager
WCF Team