After using’s Bryan Cranston’s voice to promote the iPad Air’s slimness in a TV ad that ran in the days following the tablet’s official announcement, the company has now turned to Robin Williams and his performance in the film “Dead Poets Society” for a brand new iPad Air commercial. Titled “Your Verse Anthem,” the 90-second commercial replays a Williams monologue from the movie while showing how iPad buyers use the device in all sorts of day-to-day activities. The monologue ends with a question, “What will your verse be?,” which is what Apple is asking on a special web page set up on its website to share the stories of iPad users around the world. “Each of us has something to