the app is a great idea, but the problem is that it does not give exact yardage...
If your a 15 handicap I suppose your game is not quite as exacting. I will give this a try, it might be useful for bunkers, water etc...But because there is no shared database, you would first need to play the course to enter the information and then play it again to make use of the info...If I play a course more than once or twice, I already have a good idea as to where I do, and don't want to be.

Have you thought about make a centralized database so all users could share the data collected?