to buy this to listen to their music. reporter: on the strength of itunes, jobs remade apple as a mobile powerhouse and never looked back. today apple is going to reinvent the phone. reporter: in 2007, he launched the iphone. three years later, he announced apple s first $20 billion quarter. but jobs changing physical appearance as he announced one triumph after another was a signpost to his health problems. as itunes took off, he announced he had surgery for a tumor on his pancreas. soon after, he had a liver transplant. so i now have the liver of a mid 20s person who died in a car crash and was generous enough to donate their organs. and i wouldn t be here without such generosity. reporter: after the ipad s blockbuster holiday season, he said he would step away again. we saw him as apple launched the
millions of people are going to buy this to listen to their music. reporter: on the strength of itunes, jobs remade apple as a mobile powerhouse and never looked back. today apple is going to reinvent the phone. reporter: in 2007, he launched the iphone. three years later, he announced apple s first $20 billion quarter. but jobs changing physical appearance as he announced one triumph after another was a signpost to his health problems. as itunes took off, he announced he had surgery for a tumor on his pank creas. soon after, he had a liver transplant. so i now spr thave the liver mid 20s person who died in a car crash and was generous enough to donate their organs. and i wouldn t be here without such generosity. reporter: after the ipad s blockbuster holiday season, he said he would step away again. we saw him as apple launched the