Could this be another example of online advertising presaging the onset of a hardware upgrade from Cupertino? Apple’s ads on Australian tech pub PC Authority have been spotted displaying some rather peculiar price tags for its flagship mobile and desktop computers. Whereas Cupertino’s Aussie online store lists the most affordable versions of the MacBook Pro, MacBook Air and Mac Pro at A$1,599, A$1,999 and A$3,599, respectively, the above, official-looking ads would seem to disagree. Clicking on them still leads to the currently priced (and specced) machines, but looking at them suggests that — in the absence of some major conspiracy or a splendidly random price hike — we’re getting an early peek at the pricing of the newly updated models of each of those series. The MacBook Air has jumped by A$400 so that what used to be its costliest base price is now its lowest, while the MBP has suffered a A$300 bump in cost of entry. Then again, considering the expectation that the mobile computers will get Core i7 CPUs while the Mac Pro will get all dressed up with Core i7-980X regalia, this development is perhaps not all that surprising. The major thing to take away here is that the long-awaited upgrades might finally be arriving. We’re putting our piggy banks on alert, just in case.