From GPS Review:
Emappz has released a beta version of their free (ad-based) GPS navigation software for mobile phones. The software uses the RaveGo Location Platform from Idevio. The RaveGo platform produces rotating maps, 3D views, streaming data transmission, routing, POIs, etc. Data comes from NAVTEQ and covers Western Europe.
Not at all clear to me how an ad model can support a free nav application on mobile phones, unless there’s more to the story than meets the eye.