Actually POI search is already possible and works (according to our tests and effort) in some countries like in Germany ... but geocoding is another big topic b

Actually POI search is already possible and works (according to our tests and effort) in some countries like in Germany ... but geocoding is another big topic besides routing (and map visualization) that you need for a good map application. And to make it working on a global scale is much more effort as the data quality in OSM and how addressing works can be very different for the different countries. BTW: we also provide our own geocoding which is based on photon an open source geocoding projects where we also invest, additionally to financially supporting the 'main' OpenStreetMap geocoder Nominatim project.