The main changes integrate Open Street Map because our area in Mexico is not well documented on Google maps i.e. lots of errors and missing streets. If you visit the link above you will see that a connections entry can be located on a map and the latitude and longitude is saved. Templates have been modified to show an interactive map with pointers to entries. Look at this map for example: http://map-mapa.com/riviera-nayarit-directory/restaurant-ma/
The other main change allow entries to be prioritized in listings so paying advertisers appear first like yellow page directories.