By the way, if NANOG people are interested in
learning more about building your own name servers
you might want to go to Yahoo and type "lbnamed".
That stands for load balancing "named".
You will probably locate a reference to...
http://www-leland.stanford.edu/~schemers/docs/lbnamed/lbnamed.html
With that code, you should be able to build your
own TRUE Root Name Server in a day or two.
Have fun...