Jeff -

As discussed, it could be quite some time before
enterprises have to worry about IPv6 internally.
However, that's definitely not the case for their
publically-facing servers, and enterprises should
be looking into this situation now, not in 5 years -

Here's the problem: The ISP community really gets no
choice in deploying IPv6, and they'll need to connect new
customers via IPv6. There'll certainly be a pool of IPv4
addresses and some form of translation for backward
compatibility, but the reality is that those new IPv6-
connected customers will have a much better time
reaching sites which have dual-homed IPv4/IPv6
websites than trying to use advanced web services
via translation gateways to IPv4-only enterprise web
sites.

So, while I agree with you that enterprises really do
not have to concern themselves with moving their
internal infrastructure to IPv6, for the sake of the ISP
community it might be useful to tell your readers that
they should indeed think about making their public
facing servers (web, mail, etc) dual-stack as soon as
possible.

/John