• San Francisco Chronicle, Tuesday, September 18, 2012 9:30 AM

Apple reached its limit of advance orders for iPhone 5 at its online store Friday. But can Steve Cook the company's post-Jobs CEO keep up the momentum? "I think we are definitely still riding Steve Jobs' stewardship," Matt Brezina, chief executive of mobile startup Sincerely Inc., said before Wednesday's Apple event. "Tim needs to define what kind of leader he is externally. As a developer on their platform, I'm not quite sure what kind of leader he is yet." Last quarter, the company released disappointing financial results, missing analysts' earnings-per-share estimates for only the second time in more than 30 quarters.

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