Hothead Games has announced plans to release an interactive edition of The Hitchhiker’s Guide to the Galaxy this fall for the iPhone, iPad and iPod touch. Designed to provide an authentic experience for fans of the venerable Douglas Adams “trilogy,” the app will replicate the handheld Guide from the series on the iOS platform. Users can read up on the importance of towels, Vogons and their poetry, the Babel Fish, a Pan Galactic Gargle…