Just thought I'd leave a quick note - I've just uploaded the first public build of our free XAML exporter plugin for LightWave Modeler 9. You'll find it at
http://www.shaxam.com. It does what you see in the video, with the exception of not needing a round trip to the web server.
There are many more details in the README.txt that comes with the download - if you're using LightWave 9 and you're working with EID, you should check it out.