I had sygic on my N900 and after it repeatedly sent me down country lanes and through fords when there was a perfectly suitable A road I gave up with it.

I too am missing a decent native sat nav option. Maps it nigh-on useless and i use my N9 as sat nav instead.

I have now had my jolla for nearly 6 months and there are three dealbreakers for me that are not moving.
Microsoft exchange support policies,
Navigation
Media player
Proper cloud solution

My Jolla is a great phone but it's not a smart phone for me yet. Lots of things were announced in February/March but since then there has been nothing. Angry birds and fsecure deals were announced as coming soon on the 21st February!

Maybe a question for Jolla Together.