Not sure if you've heard about StatCounter but if you are an Australian online marketer looking for local benchmarking data on any of the below metrics, I think you will like this post. StatCounter publishes local Australia data on: 

+ Browsers

+ Browser versions

+ Mobile browsers
+ Operating systems

+ Mobile operating systems

+ Search engines

+ Mobile search engines

+ Mobile vs. desktop

+ Social media

According to Wikipedia "StatCounter statistics are directly derived from hits (not unique visitors) from 3 million sites using StatCounter totalling more than 15 billion hits per month". Now, the Australian sample is not the biggest, but it's not the smallest either so good enough I think. And best of all, you cannot just export the graphs but also download the raw data!

Below are a few of the more interesting graphs on browsers and mobile operating systems in Australia compared to the global average. Australia is largely following the global browser trend with one key exception, Safari seems to be much stronger here than the global average, almost as strong as Chrome.

In terms of mobile operating systems the iOS that powers the iPhone is the clear leader in Australia with over 74% market share followed by Android with 13% which is much more balanced globally. Android has a lot more catching-up to do here and it looks like the iOS has stolen much more market share from Blackberry in Australia over the last few months than overseas.