In Episode 8, we continue working with the AutoCompleteBox control that we implemented in Episode 7. This time, we fetch a long list of country names as XML from a third-party Web service, cache the file on the client using isolated storage, and harness LINQ to XML to retrieve the country names. One of the considerations is checking Silverlight's access to the remote data. Finally, you learn how to use (and re-use) a static resource within XAML markup.
I'm currently collecting topics for a ninth episode. My intention is to make it a bug fix screencast based on feedback, so send in those reports! It will likely also cover usability issues like implementing tabs and tooltips.