[hugh3]

Do I have to be cold-hearted cynic guy again? Fine.

He redesigned things around his hospital room because he had a pad and pencil, and he was bored. There's no reason to believe that the X-ray machine he drew was better than the X-ray machines designed by X-ray machine designers with a better idea of the details and tradeoffs involved with designing X-ray machines. And that's no insult to Steve, because I'm sure he knew that too -- he was just drawing for the sake of drawing.

[hugh3]

Actually, on second thoughts I feel the need to contradict myself: Steve Jobs probably could have done a pretty good job of redesigning the user interfaces of these machines. Many devices in the "big fancy machine" category have terrible user interfaces, because the people who design them spend all their effort on the fancy internal bits, and then just stick a bunch of random buttons on, without a great deal of thought put into usability.