It has Google Maps, and I know Google has an off-line mode.
However I was looking for an off-line option as a backup. I've read there's a number of free options, but I'm wondering if there's one with a good New Zealand map. Hopefully with a map that can be updated without spending a lot of money.
Also if anyone knows of software to test the GPS connection, perhaps identifying how many satellites and how good, I'd love to hear about it also.