Re: We need a new approach
You are correct, and I never meant to imply otherwise. Here's why I need NAT regardless of IPv6 -- there is more than one box that I want to be able to contact from the internet, but I don't want the IP address of those boxen to be exposed to the internet (by "exposed, I mean both that it shouldn't be possible to contact it directly and that it shouldn't be possible for anyone outside my LAN to see that IP address is even in use). What I want is to have a single IP address that is used for incoming internet traffic, then my router directs it to wherever it needs to go.
NAT accomplishes this. I can also accomplish it with other router rules -- but in doing so, I've really just implemented a NAT via a different mechanism.