>From what I've read and seen, he is in it for the fun of the competition, and he is a very fierce competitor.

Yes he is.

>I was suprise to learn that he doesn't own 51%, but only 13%. I wonder if that represents the largest voting block of shares? I.E., is he still boss?

I didn't think it was as high a 51%. He sells thousands of shares every year. He gave up the job of CEO cause he wanted to work with the technology closer, it woudln't surprise me if he's not the chairman anymore, or if he doesn't have much interest in it anymore.