The 'final' build WhiteRussian has been out for a while now, version 0.9 is supposed to be the end of the line, with work now focusing on the Kamikaze builds. Nightly snapshots have been getting posted at openwrt.org, but I'll be sticking with the stable 0.9 release for a while.
I still need to dig in and figure out iptables, the code that controls the firewall and NAT settings, it's a lot trickier than what I'm used to, and there aren't a lot of great examples online that I've been able to find so far.