I have had a type of fondness for screen savers. I have written a few (checkout out www.jimiz.net), so when I saw the screen saver that Adrian Crenshaw wrote (http://www.irongeek.com/i.php?page=security/packetfountain) I had to give it a try. He has put the source out there and I plan on attemting to build on his idea.
I love to see ideas like this.