It is an end of an era for BlackBerry. Under the charge of CEO John Chen, the former smartphone giant has shifted its focus from a complete product stack to a software development house. There will still be BlackBerry phones of course, but those will no longer be made by BlackBerry itself. And chances are, they will be your traditional all-screen smartphone.Well, except one. Chen has finally confirmed that the company will pay tribute, perhaps one last time, to the classic keyboard-wielding phone that made the company popular.