so it seems like the Nokia HERE Maps that is made for Android, has been leaked.
http://www.androidpolice.com/2014/10...sung-hardware/

This app has also the functionality to use offline navigation.

Has anyone tried it out on Jolla?

Edit: I just tried it out, and it works GREAT!!!!
Jolla should also license this

Edit2: It seems like there that the BETA expired on October 1 2014. Just change your date on your phone to September, it should work again

Edit3: Updated the link with the new leaked version, which doesn't require you to change the date!

Edit4:
It's available for all Android phones out there now.
Download Nokia HERE for Jolla (Android version)