On another forum, a person wanted to know what our checklist was when we went out to shoot...So I showed him a screen shot of a program change for the D300. It allows you to create your own checklist and display it on the eyepiece screen.:

When you get a focus lock, it shuts off. It's still in beta testing and not available for the GP, but the release is projected to be around Christmas...
And before anyone asks...no it's not.