The leaks were not far off the mark when they said the second-gen Moto G would be hitting Australia in August. It took until September for the product to start appearing online, though you'll still have to wait a couple of weeks to get one as stock filters in.
Update: Sorry for the error, this is the Moto G2, not the 4G.
If you're looking to grab one, you can hit up either the Good Guys, which has it available for $279 — plus $5 delivery — or Yatango for $289.95 with $20 shipping (or free if you're a site member).
As Daniel Tyson over at Ausdroid notes, these prices are $10 and $20 above the recommended retail price, respectively, so if you can hang out for a little longer, it might pop up cheaper elsewhere.
Luke reviewed the Moto G last month, so if you're not sure if it's for you, give it a read.