Basically, the software gives you a couple of generic ways to attach triggers (send an OSC message, play a sound, update Pachube, etc) to regions of an incoming video stream.

You set up your video stream and then draw polygonal regions over the video image. When the video image within those regions changes, the trigger attached to each region fires.

There is also a "no action" trigger than can fire at intervals when no motion is detected in a field...I found this useful for Pacube updates, as it's kind of a "keep alive" that lets people know the sketch is still running.

I've packaged three flavors: OSC, Pachube, and audio. The audio app has a more specific behavior that was determined by a client.