Editor's note: When our grandchildren learn about the great American inventors, they'll learn about Jobs along with Nikola Tesla, Ben Franklin and Thomas Edison. Jobs radically changed at least seven industries:personal computing, phones, animated movies, music, tablet computing, retail stores and digital publishing. His 2005 speech at Stanford is the most-watched commencement speech of all time and his advice that "Your time is limited, so don't waste it living someone else's life" continues to resonate. Get your Steve Jobs wallpaper in honor of an icon.