Navteq has just updated their iGo iPhone turn by turn navigation app, with turn-by-turn navigation for all of Australia and New Zealand, complete with 3D visuals and maps updated quarterly.
The app will set you back $75, which seems to be around about par for the course for iPhone navigation apps. Considering it includes text to speech and spoken street names, it seems pretty well featured for a navigation app, despite the fact that the design looks a little Windows Mobile to me.
[iGo (iTunes Link)]