Google Maps is a basic web mapping service application and technology provided by Google.
Google Maps is a basic web mapping service application and technology provided by Google. It offers street maps, a route planner for traveling by foot, car, or public transport and an urban business locator for numerous countries around the world. The Android version also includes turn-by-turn GPS navigation.
Google Maps for Mobile: http://www.google.com/intl/en/mobile/maps/ More Info »
I've always been a fan of orienteering, and Google Maps has been like a dream come true. There are a lotta good tricks to pulling out large images of maps, that I can print up on a large format printer and take with.
How to edit Google Mapshttp://google-latlong.blogspot.com/2010/09/how-to-edit-google-maps-and-local.html