The PusherActivityStreamer.js library
The purpose of the PusherActivityStreamer.js library is to make is super easy to activity streams to any web application.
The first version of this sample shows how to trigger realtime activity stream events from PHP. Later version will demonstrate how to achieve this using other backend technologies.
http://html5-realtime-activity-streams.phpfogapp.com/
A tutorial explaining how to use the example can be found here: http://pusher.com/tutorials/realtime_activity_streams