Mapbox has announced a Unity SDK that provides a mapping platform, similar to the AR mapping of Pokemon Go, to developers across the gaming industry. With the major success of Pokemon Go, maps could be the foundation for a new generation of AR and VR games and Mapbox aims to capitalize.
The Google Maps API naturally has a rich history on ProgrammableWeb. Over the last year or so, Google has released additional maps-related APIs as separate services. One of the latest ones is the Google Distance Matrix API. This allows a developer to submit a matrix of locations, as origins and destinations, and get a list of the distances in return.