It’s not just about the second-quarter earnings which showed a near $1 billion write-down for unsold BlackBerry Z10 phones. It’s not about the fact that the BlackBerry PlayBook, the company’s first and only tablet offering, failed. It’s not about the fact that CEO Thorsten Heins, who took over Jim Balsillie and Mike Lazaridis, was stiff and never resonated with consumers, the media or investors. BlackBerry’s downfall stems from much more than that, going back six years. In 2007, Apple announced the iPhone, at the MacWorld Conference, with then CEO Steve Jobs introducing the revolutionary phone. At that time, BlackBerry (then Research in Motion) was the darling of the tech industry. With a stock price hovering around $140 per share and

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