That's a new record for fastest-selling hardware in Oz -- previously, the DS shifted a million units over its opening 152 weeks. The handheld was never going to compete with its bigger brother, however: the sale of 685,000 Wiis during 2008 made sure of that.
Oh, and hey, while we're at Nintendo of Australia's site, let's check out the progress on the local Club Nintendo! Oh, look at that: it's still not functional. Color us not amazed in the slightest.