For those of you not familiar with the “My Maps” feature of the main Google Maps website, it allows users to draw lines and shapes on a regular Google Maps view, as well as place icons for things like people, cars, water, and similar features.
The customized map views can then be saved and referenced later, or even made available for the public to view and use.
I can see a lot of potential applications for real estate or just plain hiking and biking type tasks that require a lot of locations be hit. In any event, it is, of course, a free application and one worth checking out. It can be downloaded from the Android Market on your Android powered smartphone.