What if the market changes faster than the customer you built your whole business around? As a Canadian, I remember feeling really proud of BlackBerry. Back when it was called Research In Motion (or RIM), the company felt unstoppable. Business leaders flaunted BlackBerrys everywhere. Governments depended on them. And executives treated the keyboard like an extension of their hand. They LOVED it. My colleagues Andreas kept using his BlackBerry long after most people had moved on. He refused to...