Nokia tells unhappy iOS 6 map users to try Nokia Maps on their browser
Nokia Maps mobile web site on the Apple iPhone
It's the latest move by Nokia to capitalize on what is considered to be a major strength of Nokia's smartphone line. If you go ahead and try Nokia Maps, remember that it is not an app that you can install, but is a mobile site on the internet. Just direct your mobile Safari browser to maps.Nokia.com. If you would rather try another alternative, there are many mapping and navigational apps in the App Store, some with turn-by-turn directions. For those partial to Google, thre is also a version of Google Maps available on the mobile web.
source: Nokia, UnleashThePhones via AllThingsD