Its is covered by the GPL and is FREE and always will be. I encourage and welcome anyone who wants to port and/or provide ideas/code to better this software.

I would like to see this software developed into a new breed of firewall that provides the best of security with ease of use.

This software was developed on Linux v2.2.16-17 and v2.4 with 64 megs to 1 Gig of RAM and supports ipchains and iptables. Bulldog will NOT run on Windows systems.
Doesn't seem like he can really get much out of advertising. Seems like he really does want help.