"onMap" is an Image Geo Tagging application, which can read EXIF header of images stored in your Android device and Map them over Google Map. So if you enabled the GPS feature while capturing images from your Android device, you can use this application to Map them based on their Geographic position.
This is just a sample application with limited functionality. So if anyone wants to get a customize version of it, please feel free to contact me.
2. Source Code
Google Map handling in Android
Invoke Gallery from your Application