As an update to this item on Mícheál Ó Foghlú’s Weblog: IPv6 Alloactions to Enterprises in Europe – a problem? it looks like this will no longer be a problem!
RIPE have a policy proposal in place since May 2007 called Provider Independent (PI) IPv6 Assignments for End User Organisations (Policy Proposal 2006-01) and as of July 12th AfriNIC has announced that they have implemented the IPv6 PI policy.
This should see the start of the other four regional Internet registries implementing the policy also.
Links include
http://www.ripe.net/ripe/policies/proposals/2006-01.html
http://www.afrinic.net/docs/policies/afpol-v6200701.htm