countless innovations that enrich and improve all our lives. the world is immeasureably better because of steve. now, we last saw steve jobs at an apple conference here in san francisco back in june. he was looking extremely thin as he heads for six or seven years now, but he did look vibrant and almost had the life he did as a young man, appearing at these apple conferences. >> thank you very much. >> reporter: in his signature blue jeans and black turtle neck, steve jobs became familiar as apple's super salesman, unveiling tech not that would excite consumers and shakeup all industries. >> light tunnel is really great when you want to sort of play god here. >> reporter: in 2001 he changed the way we buy and listen to music, with the ipod. >> i think when you actually see one these things you're going to be blown away with how beautiful it is and how thin it is.