I think that the tech "gold rush" is still in it's early stages. It's still hard to convince investors in Aus that new ideas are worth betting on, so copy-cats with proven markets are currently leading the way.
However, on the ground here I don't just see the big guys. There a plenty of smaller bootstrapped companies that are genuinely innovative. I went to a startup expo at one of the uni's here last month and was completely blown away by the innovation of many of the smaller companies. If I had the money there's plenty I would be betting on.
"Just wait" is what I would say.