Say what you will about his personality. Some folks idolize him. Others vilify him. One thing is plain to see, he has been a rather savvy businessman.
He's an early-adopter who sees things before most folks know what's coming. More importantly he isn't afraid to take action. He is usually criticized for taking action until the rest of the world catches up. Then he's considered a genius.
The interesting thing is that he isn't secretive about anything he does. He tells everyone why he is doing what he is doing. Faces the criticism head on, gathers a talented team around him, and makes the impossible possible.
He also doesnt try to bring out a slightly better app or an upgrade on a new product.
The targets he sets are huge.