The name of the list is linux-nat|
However, you haven't missed anything yet, so far I can still count the overall number of messages on that list on one hand ;-)
Looks like people prefer this forum...
There's no active development going on, so there's not that much to say, I guess. I might enter current main stream kernel development for future NAT stuff. See the ipchains-homepage for the next stage, for what they've planned for 2.3.