This is not a new bill, it is an amendment to the "Defence Trade Controls Act 2012".
I see nothing to suggest that, say, exporting open source cryptographic software without a permit is more illegal under this bill than it is as things stand right now. I did 6 months working for Motorola doing software development back in 2005 or so and I remember they had training and stuff regarding export controls including export controls on cryptography.
The actual list of what is export controlled is the same list as used in every other country that is a signatory to the same international export control treaty.
As for the bill itself, if it (or the bill it amends) DOES make exporting cryptography (or other software) illegal (or if that stuff is otherwise illegal) then people should use the public consultation process (or letters to their local MPs and senators) asking for exemptions that cover open source software so that it becomes possible to continue development and use of such software in Australia.