From www.engadget.com – Lets hope this service comes to NZ soon, but it’s probably more useful while cycling in a foreign land anyway!
Google’s cycling directions have been slowly expanding their reach to the mobile world and other countries, but the only option for navigation so far has been to memorize the route. As of today, you won’t have to stop every five minutes to get your bearings. Google Maps for Android has received a low-key update that adds spoken, turn-by-turn Google Maps Navigation for riders in every country where biking directions exist — if you can clamp your phone to your handlebars, you can find your way.
http://www.engadget.com/2012/08/29/google-maps-for-android-adds-turn-by-turn-biking-navigation/