Hidden in the credits is the title "Keeper of the Holocron." A Holocron is a cube-like artifact used by the Jedi to store information that were first mentioned in the Dark Horse comic book series 'Dark Empire. On the official Star Wars site Leland Chee was in charge of continuity and received the honorary title of 'Keeper of the Holocron'.
After the credits are done, there is a snippet of Luke Skywalker's theme.