While I like free and open software I have to pay for my flying lessons somehow, so I concentrate on the job that generates money. Besides, there didn't seem to be much interest. You're the third person to ask. I guess I would change my mind if 200 people would ask, but this won't happen.|
It was a single person development, although the initial design discussion took place on a mailing list owned by Jos Vos, known as the author of much of Linux' current firewalling code (that list became _very_ silent when it came to writing code, for the same reason I gave in the first sentence, I guess).
I don't work on NAT any longer, but I keep the forum going. Since everything is GPL anybody could continue from here.