Repeat the mistakes done in IPv4, only this time by assigning everything to the RIRs instead of directly to the user? Good plan. Has nobody learned from the mistaked made in the past?
We can not say if there will be another assigment policy then IANA->RIR->LIR in maybe 20 or 30 years (thats the time IPv6 has a realistic chance to gain real speed).
Then the RIRs sit on their /8s wihtout really needing it just like the organizations that got direct assignments today.
bingo! and i do not buy the assumption that the rirs need no oversight, just as i do not buy that the iana does. and i do not buy that these policy fora mailing lists provide that oversight any more than i buy that the equivalent ones in icann provide the same for the iana. randy