Lot of work went into this update. Lots of great new features including the ability to greenscreen images on to the markers to create transparent borders. Technologically it's not as advanced as creating a true alpha channel but it's a lot less processor expensive when running large amounts of video like we are doing. The result is pretty cool. The only downside is that the images can't overlap. They create a blank space. Not the end of the world, after all this software is intended to work with one movie per marker. It's only if you get totally carried away with scale and offset that it's at all noticable.
Otherwise it's becoming a seriously cool little app. It compresses your videos so you can instantly test different codecs for your project, allows you a bunch of camera configurations and works with any camera that works in Quicktime. You can even add content from http:// and rtsp:// streams. I've only tested it with static videos but I would imagine you could stream a live webcam feed directly to a marker and then chromakey it.