The decline of BlackBerry Ltd. as a dominant player in the global smartphone market can be traced largely to its inadequate response to Apple Inc.'s iPhone, say authors of a new book on the subject. Losing the Signal: The Spectacular Rise and Fall of BlackBerry was written by Globe and Mail journalists Jacquie McNish and Sean Silcoff. It was published by HarperCollins Publishers Ltd. and released Tuesday. It tells the story of how Research In Motion Ltd. (RIM), later renamed to BlackBerry, was founded in the 1980s, struggled to survive for more than a decade and then released a product called the BlackBerry in 1999 that went on to change the way people worked and lived. Things then...