It's worth telling you that the Australian Kinect doesn't support voice control. As Kotaku reported back in September, Microsoft has decided that any region outside of America, the UK, and Mexico will have to wait until Autumn next year before voice controls work. Damn.
I actually spent a good 20 minutes last night trying to work out why voice controls weren't working on my Kinect, only to rediscover this Kotaku post today. Considering there's absolutely no mention of this lack of feature for Australians in any of the marketing we've seen from Microsoft, despite plenty of discussion about the feature, it's exceptionally poor form from Redmond.
We've contacted Microsoft's PR company for an explanation on the issue and will update when we hear an official response.