http://blogs.msdn.com/b/innov8showcase/archive/2010/05/10/check-out-using-expression-blend-behaviors-for-creating-silverlight-applications.aspxWant to easily create a new Button that plays a sound and bounces off the screen when you click on it?  Behaviors will enable people to do just that by dragging and dropping the behavior onto the element they want to add the interactivity to. en-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)