Amazon just opened a Kindle store for Australia! My books are all there, although, sadly, The Sixth Discipline is $1.03 AUD instead of being free. If you have an Australian account with Amazon, do us all a favor and click the link that says “Tell us about a lower price,” and then report the link for that book in iBooks in Australia, where it's free. You can add a link for it being free in the Kobo store for Australia, too, if you like.
And g'day to you, too!