I was recently talking to a guy who used to work in Bond and Bond. He reckons all Navman units sold in NZ have both the NZ and AU maps installed and all you pay for is an unlock code to enable you to use the AU maps. Fair enough. But he also said you don't actually have to pay to unlock the maps. Just take your NZ Navman to AU, switch it on and reset it, and it will automatically start using the AU maps when it connects to the satellite.
Anyone know if this is for real?