[ppml] early adopter advantage

it's been spake several times today that one big problem with the IPv6 PI
proposal was that it would not scale to the full IPv6 population, and
therefore we ought to craft a policy that gave no special advantages to
the early adopters.  MIT and Stanford and DEC and HP all having "class A"
IPv6 networks whereas China can't get one, was cited as an example of this.

another more specific concern i heard today was "if we allow PI IPv6 space
then there will be no incentive to develop non-PI multihoming technology".

i think both of these concerns are misplaced.  if we want there to be an
IPv6 network economy we're going to have to give folks what they need to
become early adopters, and if they're asking for PI IPv6, then we have to
at least listen.  furthermore, the incentive to more quickly develop non-PI
alternatives for IPv6 multihoming might actually be higher if there's PI
space being granted, since it's *such* a bad idea in the long run.  (this
assumes that the primary developers of non-PI IPv6 multihoming technology
will be vendors and registries rather than end-users; this seems ~likely.)