It seems to me that the NAT problem is a *NAT* problem, not an AH
problem. I'd want to hear from the wireless guys that they think
ESP NULL is a reasonable substitute for AH, too.
More generally the only reason I can see for moving something to
historic is if it's not implemented and the environment has changed
sufficiently so that it probably shouldn't be implemented. Don't think
AH is there yet and I don't think it's a win to push more stuff into
the publication queue. I'm not really against this but I'm definitely
not in support of it.