Contoso ISV Quick App and Live Services demonstration project was designed to showcase Silverlight, Live Contacts, Web IM, Presence, Agents, Activity Windows, Alerts and Virtual Earth in one application.  The demonstration was  presented by Brian Hall as part of the Steve Ballmer Keynote at the Microsoft World Wide Partner Conference.

http://dev.live.com/quickapps/

http://contosoisv.mslivelabs.com/

http://www.codeplex.com/WLQuickApps/Wiki/View.aspx?title=Contoso ISV&referringTitle=Home