Wow what a deal.!!!

skobbler - Home - smart apps and technology based on OpenStreetMap - OSM (http://www.skobbler.us/)

High end feature set and .99¢ !!!:greedy::greedy:

App Store - GPS Navigation 2 - skobbler (US/CAN) (http://itunes.apple.com/ca/app/gps-navigation-2-skobbler/id370144231?mt=8)

The entire world downloadable $9.99 so yes it works offline.
skobbler - Apps - ForeverMap - iPhone - smart apps and technology based on OpenStreetMap - OSM (http://www.skobbler.us/apps/forevermap)

and a very sexy and calming Brit voice :heybaby: