Buddypress Jquery Activity Stream Widget by dunhakdis lets your site viewers/users easily read the activity streams by adding a simple yet customizable widget that displays streams in an animated manner.
Enter desired animation speed
Enter desired animation timeouts
User can select from two effects (Slide and Fade). Will be adding more soon!
Customize widget area height
Download and info; http://wordpress.org/extend/plugins/buddypress-jquery-activity-stream-widget/