A touch draw app.
Let your kids draw on top of an background image and afterwards remove the background and see how good they did.
also an electronic whiteboard. With a simple connection to a projector you can enlarge it and everyone can see. It can be used to a wide of options
"Load any background image you want and you have a perfect chalk talk for all sports. No more needs for downloading different apps if you are coaching more than one sport."
Save whats on the screen to your photo library with save button and then send it to friends or players if your are using it for chalk talk.