Panasonic has anecdotally had serious supply issues in the US (see LL front page article by Mr Dubovoy), while not so much in Europe - no idea how it is in Australia. I believe G3 is supposed to be a "real" camera, not a stopgap or transition model. It's a bit low-spec for the camera geeks to get too excited about, which I believe is the reason for lack of buzz, along with the fact that it's not widely available, yet. The flagship cameras get all the love in the press.
You might want to wait a few days if possible: Olympus is releasing three (!) new MFT cameras on 30 June along with at least one lens (prime 12mm f/2.0 yay!), not known yet when they will ship.