@KTy: From my experience Google's terms of usage restrict the usage of their services to websites and disallow important things like turn-by-turn navigation.

@all:
I created a new version 1.3.2.3 which could eventually become 1.3.3. One last thing I've been working on this evening is some polishing for the initial screen, where still some icons are missing. Unfortunately there's a lack of activity within KDE's icon creators and I miss the required designer skills, so I'm searching for a different icon set. I tried some icons from thenounproject.com, resulting in this (left old, right new):

It's not total crap, but nothing to ship either. How do you like those icons, are they self-explaining? Any designers around to polish things up? The white rectangle gradient looks rather silly still and having a 3D colored background object against a monochrome foreground doesn't feel absolutely right to me as well.