Here's a red flag for you
BlackBerry is international so they need things like a new a Q5 and a new OS 7 device.
For most of the world BB10 is the flagship OS. The Z10 and Q10 are gems. People love phones, when their contracts are up and they are looking for the best phone and OS they will consider BlackBerry.
imo the world is currently a masked recession, it will soon devolve into stagflation. Which means strapped consumers will hold onto whatever old phones they have as long as they can.
BlackBerry has achieved an amazing feat by bringing the Z10 and Q10 to market. All they need to do now is keep incrementially improving the OS + apps and stay focused on making excellent hardware as they are now. Consumers will follow quality.
Apple has lost Jobs. BlackBerry has a living Heins.