ABS has released the first statistics from the 2006 census. A quick look at the ABS site indicates a vast improvement in usability.
There are currently three online tools provided for retrieving data sets:
QuickStats - A summary of key Census data for a chosen area, bench marked against Australia.
MapStats - A series of thematic maps showing the distribution of Census data for a chosen location.
Census Tables - Individual tables of Census data, available on a range of topics, for a chosen location.
The Next Release will be August 2007 -1st Release Community Profiles (Basic, Indigenous and Time Series).