Following the formal release of the Subscription Advantage Pack for Revit 2011, which is now available for download from the Subscription Centre, additional information and videos have been released by Autodesk to explain in detail the functionality. Take a look at these if you want an in-depth look.
http://usa.autodesk.com/adsk/servlet/ps/dl/item?siteID=123112&id=15731389&linkID=9243099
