After the Apple II was introduced, then came the Commodore and the Tandy TRS-80.

There's nothing that would keep Apple out of the Android market as a secondary phone market.

When we first started with Apple computers, it was my dream that everyone would learn to program, and that was how they'd use their computer.

Teachers started recognizing me and praising me for being smart in science and that made me want to be even smarter in science!

I went - I had designed - in high school designed hundreds and hundreds of computers over and over and over, so I developed these skills without ever thinking I'd do it in life as job.

The people I recommend the iPhone 4S for are the ones who are already in the Mac world, because it's so compatible, and people who are just scared of computers altogether and don't want to use them. The iPhone is the least frightening thing. For that kind of person who is scared of complexity, well, here's a phone that is simple to use and does what you need it to do.

I hope you're as lucky as I am. The world needs inventors--great ones. You can be one. If you love what you do and are willing to do what it really takes, it's within your reach. And it'll be worth every minute you spend alone at night, thinking and thinking about what it is you want to design or build. It'll be worth it, I promise.