After watching the movie above (which is only a few days old), you'll be interested in a look at the related site (http://gephi.org/):
Swing and the NetBeans Platform in action, pretty cool. It seems to be in a similar domain to Maltego, the intelligence gathering application from South Africa, which is also a NetBeans Platform application! Since it's a NetBeans Platform application, Gephi is pluggable and has a very cool developers page that provides all the info you need, including API details and tutorials.
In other news. I was visiting family in South Africa last week and this is one very short video that I made while there: http://blip.tv/file/3279679.