BlackBerry reported losses and laid off people. RIM failed to keep pace with Apple and Google. There were problems on three fronts.

*  It fails to anticipate that customers (not business customers ) would drive the smart phones market

* it ignored app economy which led to the adoption of the rival device.

*  could not foresee smart phones as mobile entertainment. It produced phones with full keyboards, though users preferred touch screen.This allows better video viewing and touch-swipe navigation. When Blackberry finally puts a touch screen phone, it is considered a copy of iPhone.

In short, it is a failure of vision.