Anoop Madhusudanan, a Client App Development MVP from India, has created a Silverlight client for Scott Hanselman's Nerd dinner.
The application pulls Dinners and RSVPs from Nerd Dinner website over the oData endpoint, and show them via the Bing maps control for Silverlight. The app is available open-source.
Anoop details the development in his blog post here which also serves as a how-to on Silverlight project with following milestones:
In all enthusiasm for the upcoming Windows Phone 7, he’s also done a quick port of the application for Windows Phone 7. Details here.