A POI’s pinpoint records its latitude and longitude data. This is used to locate a POI in space so it can be plotted on physical maps or displayed on Google-type maps, for example.
Where a POI is located within an area covered by detailed Lonely Planet base-map data (map tiles) it is pinpointed against that data; if the POI is located beyond the extent of Lonely Planet base-map data it is pinpointed against OpenStreetMap data.