There are times when hierarchy matters, when one object rolls up into another, and you need something like the Subject Lookup. Have you ever needed to create something like the Subject Lookup in Dynamics CRM 2011? This is a Web Resource that overrides the CRM lookup button to launch a Web Resource that mimics the Subject Lookup.
SilverCrmSoap is a library built using the methods in Walkthrough: Use the SOAP Endpoint for Web Resources with Silverlight. The SilverCrmSoap library simplifies SOAP Silverlight development for CRM 2011 by providing a class that does a lot of the heavy lifting right out of the box.
The Notification Accelerator on Codeplex does not offer a queueitem RSS feed. I’m not sure why, but here is a simple solution to display an RSS feed. It defaults to the current user’s queues, but if the q=blah is specified in address then all queueitems in any queue with blah in it will be displayed.