That’s not quite the case today. BlackBerry is set to be sold for less than $5bn (£3.1bn) despite having once been worth more than $80bn. It has been usurped by the iPhone and iPad in many corporate circles, and Samsung’s Knox security service means that Android smartphones are more than safe for businesses. With that model, you can create a secure phone-within-a-phone with which even the most old-fashioned corporate IT departments should be happy.