nice demos with code on codeplex

<br/><a href="http://video.msn.com/video.aspx?vid=62786555-9ea2-42de-bdce-0f297d3a4980" target="_new" title="Farseer Physics Engine Samples">Video: Farseer Physics Engine Samples</a>

more links and demos on Oliver´s Blog http://the-oliver.com/2009/08/26/silverlight-farseer-physics/

and Codeplex http://farseerphysics.codeplex.com/Wiki/View.aspx?title=Videos