The report, Open public sector information: from principles to practice, is available online and is a relative straightforward read.
The OAIC also released the aggregated data for the report into data.gov.au - modelling the behaviour that other government agencies should follow (though I would have preferred raw data).
This contains lots of additional data worth reviewing that someone who just reads the report won't learn. You can find this file from: http://data.gov.au/dataset/data-from-the-oaic-public-sector-information-survey-2012/
I've developed a three page infographic (embedded below) using some of the data released for this report to explore the Australian Government's commitment to open data and the types of challenges agencies say they face.