GreenFinder can turn your SmartPhone into a Golf GPS Rangefinder! Why buy or carry around another device when GreenFinder converts your BlackBerry or iPhone 3G into a GPS-powered rangefinder? For only $35, you can track your distance to the green, see how far to carry hazards and measure your shot distance. GreenFinder Golf GPS gives you everything you need to help improve your golf game - on your SmartPhone. GreenFinder offers over 11,000 Golf Courses,you can add your own course,guaranteed yardage accuracy and it is easy to use!