I've just released Beta 2 of Gargoyle -- one day late. I'll be impressed if the OpenWrt developers can come that close to meeting their stated deadline for the upcoming Kamikaze release.
The new version has a couple of new features including a utility to monitor web usage (e.g. what websites users have recently visited, for those concerned about privacy be reassured it is inactive by default), DMZ configuration in the Firewall/Port Forwarding page and the ability to expand/collapse the large blocks of explanatory text that appear on some of the pages.
Also, a bunch of bug fixes have been implemented, including better error checking for the DHCP section, improved port forwarding code, and elimination of a bug that caused some Atheros systems to have trouble viewing the Status/ Overview page.