Speed is the key: How Windows Phone jumped ahead of BlackBerry
Microsoft and BlackBerry took the same approach to evolving their smartphones strategies – but Microsoft was faster off the blocks and that matters.
Latest from Mary Branscombe
From cars to keyboards: How to deal with fragmentation the BlackBerry way
With two different screen sizes on the Z10 and Q10, do BlackBerry apps have to be different? No, but you might want a different approach for using them with a keyboard - or in a car.
Behind the scenes at BlackBerry, in photos
A new name, a new phone, a new campus: how BlackBerry is reinventing itself.
BlackBerry 10: Forget about the phone - it's the OS that really counts
With the Z10, BlackBerry finally has a modern smartphone — but it's the operating system that matters.