> Google's dominance in this space is not due to pure mapping data (although that also seems to be the best in the world) That depends on type of data and area

> Google's dominance in this space is not due to pure mapping data (although that also seems to be the best in the world) That depends on type of data and area, in many cases OSM data is superior or as good (or as bad) as Goggle data. For POIs and car-centric info in rich countries Google clearly dominates, for hiking and cycling data OSM is much better and so on.