the author of this app says:
This application will let you carry a storyboard around with you, using your handheld. Ever have an idea come to you and then find yourself with nothing available to sketch it down? Well, this is the application for you.
With this program, you can keep track of shots you want to take, along with information relating to the development of what you want, where the shot will take place, and even information about the shooting script.
You can even use the built-in location manager to cross reference your locations with physcial counterparts. The sketch board is awsome as well.
Check it out!