Judging by their autographs, Bill Gates is unpretentious, Tim Cook is whip-smart and Mark Zuckerberg is super private, that is if you buy into graphology.
The tech giant delivered the goods -- that is, exciting visuals without so many words -- when it unveiled its latest version of the popular smartphone.
Riding high on record-breaking iPhone pre-orders, Tim Cook discussed television, competition and the art of simplicity in a brand new sit-down interview.