Below an example of what can be done with Geo Mapping and reverse geo coding. We have in depth knowledge of and experience in customizing - Google Maps, Google earth, Multimap, MapQuest 

We use KML, the XML language for Google Geo applications such as Google Maps and Google Earth.

We used third party Geo services such as: http://www.nacgeo.com/

Reference clients: Fleetronic.net, FunAbroad.com