Probably the biggest problem with OSM (that the likes of GM doesn't have) is inconsistant coverage within a country. GM will be pretty consistant in how well ma

Probably the biggest problem with OSM (that the likes of GM doesn't have) is inconsistant coverage within a country. GM will be pretty consistant in how well mapped a country is all over the country, whereas OSM might have one city mapped very well, but another region be very blank.