Well, I wish the best of health for Mr. Jobbs.
However, I don't see him as the kind of leader that would put a strong successor for his post as CEO in his place, perhaps in part do to his ego, but certainly in part because of his overbearing nature that he is reported to have within the company (based on a number of case studies I have read). Unless the board of directors makes a strong decision for his successor, not some puppet, but a real strong leader... Apple will collapse with an unclear vision of how to proceed.