That's exactly the right question to ask. When they were selling 15M phones a year or two ago, selling 5-6M M phones today is a disaster, especially when the trend continues downward after releasing the BB10 which was supposed to "save" BlackBerry. Then add the fact that they had to take a big loss on unsold BB10 inventory, and the picture is pretty bleak.

They can probably stick around for a long time as a niche player, but that's not going to provide the kind of big returns that the investors expect.