In this video, John meets with Deepesh Mohnani from the WCF RIA Services team. Deepesh demonstrates how to expose various endpoints from WCF RIA Services. This is a great explanation and walk through of how to open RIA Services domain services to clients, including: Silverlight clients (of course) Creating an OData endpoint and showing how Excel can use it Creating a SOAP endpoint to a domain service and using it from a Windows Phone 7 application Creating a JSON endpoint and having an AJAX application talk to it Relevant links: John’s Blog and on Twitter (@john_papa) Deepesh's Blog and on Twitter (@deepeshm) More about RIA Services  Follow us on Twitter @SilverlightTV or on the web at