Overture is a data-centric map project, not a community of individual map editors. Therefore, Overture is intended to be complementary to OSM. We combine OSM with other sources to produce new open map data sets. Overture data will be available for use by the OpenStreetMap community under compatible open data licenses. Overture members are encouraged to contribute to OSM directly.
I don't know a lot about any of both projects, but it seems fair.
All companies are forced to play nice when they aren't at the top. Google has a monopoly on mapping, their only real competitor is TomTom, and really only in the US. All of these companies need mapping data and don't want to pay google for it, so it makes sense to work together to release this.
It makes sense; OSM is a great source of mapping data, but it misses POIs like businesses and whatnot. If I understand it correctly they all want to chip in to make a huge combined dataset that has the potential to rival Google Maps, especially if they all use it and allow people to contribute as easily as you can do on Google Maps.
Sounds like you don't actually know much about it. This is a map dataset, they have no way of tracking people once it is independently implemented. They also could have just released a map app using OSM and collected data from that, there was nothing stopping them.
They explained in their FAQ why this is a separate project:
Overture is a data-centric map project, not a community of individual map editors. Therefore, Overture is intended to be complementary to OSM. We combine OSM with other sources to produce new open map data sets. Overture data will be available for use by the OpenStreetMap community under compatible open data licenses. Overture members are encouraged to contribute to OSM directly.
Totally understandable. I donāt want to come off like I was well read on this, I was definitely jumping to a conclusion based on the companies involved.
It wouldn't. It's an open set of data that anybody can use. These companies can, and likely will, create their own map tools that will track users, but they just as easily could have done so using OSM.