Couldn't find this posted anywhere else ... it appears the Australian Government has asked the US DOT what gives:
Canberra lobbies for Virgin Blue
Canberra lobbies for Virgin Blue
In a sign of the clout in Canberra of Virgin Blue's new boss, John Borghetti, the government has written to the US Department of Transportation urging it to come to a ''positive outcome'' in its final deliberation on the proposed alliance between the two airlines on the Australia-US route.