The problem is that corporations are not just satisfied with making a profit but tend to progress towards squeezing the last penny out of users at all costs. For example, Google is rolling out tracking which stores Android phones visit, and if you turn location services off, a lot of things including Google Now stop working[1]. Why would I want to work for free on improving maps so they can track where people go for advertising purposes? It is the difference between contributing to Wikipedia versus Encyclopaedia Brittanica.Not to mention doing user hostile things like making ads look like search results[3]

>That's precisely what Google is trying to achieve with its mapping initiative. The firm is investing heavily in community tools (not to mention SDKs for developers) that give us an opportunity to participate: posting, querying and modifying data.

So is OpenStreetMap, Navteq(commercial again) [2] and other mapping companies. Atleast Navteq/Nokia allows you to download complete offlline maps for their Here maps on supported devices unlike Google which wants to force people to be online for tracking/advertising purposes.

[1] http://digiday.com/platforms/google-tracking/

[2] https://mapreporter.navteq.com/#dashboard

[3] http://blog.dynamoo.com/2013/10/google-ads-and-fff7ed-whats-...