looks like
irwin8417 and
marcuslai were right on the money [in this thread]:
http://www.flyertalk.com/forum/ameri...st-2010-a.html
according to the agents i spoke with, cx marco polo diamond starts on april 11 for aussie and idc centurion card holders (there are probably other centurion countries offering this as well but i could only check the countries where i hold the card).
i'll believe it once the status is in the bank, but for now, colour me stunned. for once, it appears that centurion is actually giving us non-usa members an amazing benefit on a great airline.