If we think the reasons for the fall of BlackBerry are an open and shut case, we need to think again. Sean Silcoff is the co-author of Losing the Signal. The book covers the rise of BlackBerry, how its foundation started cracking before Apple's iPhone came on the scene and the breakup of two iconic founders of a company that once topped $20 billion in revenues.This interview explores some of the highs and lows in this story, a very readable narrative that also serves as a great business case study. Finally, we ask if there could have been a different ending. The ideas you hear might surprise you.