Anybody who's in business knows that business is highly personal. After you spend too many hours and too much work on something you cannot help but care about the final results. Take the edge off Job's personality and you'd get a completely different person.

Given that Schmidt was on Apple's board of directors we can safely assume that he did not tell Jobs his plans. If he had, he never would have served on Apple's board. By joining Apple's board of directors Schmidt essentially promised he wasn't going to invade Apple's territory. Then he decided to do so anyway. So I think Jobs has every right to be upset with Google.

In my opinion Schmidt should never have posed as an ally and Jobs should never have accepted Schmidt on the board in the first place.