During the australian tour after the Venus transit observation in Canberra, Miguel Sanchez-Portal and me captured the following images of the southern winter sky in Australia. The images were obtained somewhere in the road near to Barthust, New South Wales, with a Canon550D with ISO forced mode, full aperture and 15 seconds of exposure.
Southern Area of Scorpio
Southern Cross and Alpha Centauri
Magellanic Clouds
So, it is quite evident that light pollution is nearly inexistent in Australia.