as many of you know google maps now have changed the service costs and its not affordable anymore.
we used to be able to make 25,000 request per day for free and now we are limited by 14,000 per month. after that you will be charged a lot of money.
so i hope we see Mapbox for example. it have 50,000 free request per day and you can make your own map layers also its based on OSM