It's the real "Chaos Computer Club." :-)
Seriously, If you want to know more about chaos based computing check out this site I found:
http://www.physics.gatech.edu/chaos/
Search on:"Dynamics Based Computation"
This will take you to a reprint of the paper Max mentioned. It's in Acrobat format. The mission statement also has some information on Chaos based computing, and it's is also a lot easier to read than the paper.
As an unrelated topic, the other "Chaos Computer Club" is here:
http://berlin.ccc.de/
Where you can learn how to transfer your money
to someone you don't even know with one easy click.
(internet explorer required)