usual, he threw himself into the marketing, working with James Vincent and Duncan Milner at the ad agency (now called TBWA/ Media Arts Lab), with Lee Clow advising from a semiretired perch. The commercial they first produced was a gentle scene of a guy in faded jeans and sweatshirt reclining in a chair, looking at email, a photo album, the New York Times, books, and video on an iPad propped on his lap. There were no words, just