Blackberry appeared unbearably arrogant. They were punished in the market. But much of their tech and concepts were good. Gaining control of QNX, which makes Android, iOS, etc. look pretty tired amd ancient, and developing BB10 should have led to a revival. The Passport, however flawed its build, is even now a view of the future; its design is a prototype of that combination of phone and tablet that will probably be the single standard device until miniaturized holographic hands free systems arrive.