Those odds really mean nothing at this stage. We all wait in anticipation to see how Australia goes without Mcgrath and Warne, and how England bounce back from this whitewash.
Its tough to call a series that is two and a half years away when we don't actually know who will be playing - Australia have just lost three more players, and there are no guarantees that Hayden, Gilchrist and MacGill will still be available or that the by then 30 something Lee and Clark will retian fitness, whilst England could reasonably expect to lose Harmison (no bad thing) as well as some peripherals (Jones, Tresco, Giles) and, heaven forfend, Virgil in that time.