ARIN

I don't understand the proposal. Are you trying to:

A) Keep the registration (uniqueness), whois (at least pointers), and 
reverse DNS (again, at least pointers) for the legacy address blocks in 
the ARIN region under ARIN control? (In which case I don't see what 
anyone would be "opting out" of)

B) Remove the legacy address blocks from ARIN control and transfer them 
to a new entity? (In which case I think you need to be operating under 
ICANN ICP-2 with regard to the formation of this new entity, and it 
isn't appropriate for the ARIN PDP)

C) Remove the legacy address blocks from ARIN control and NOT transfer 
them to a new entity? (In which case I'm not sure where you'd go, 
because ICANN clearly has the assumption that a single RIR will have 
responsibility for the block(s))

Matthew Kaufman