I don't know if Microsoft buys them, but RIM is hurting.
OS6 isn't any better than previous. Seriously, it's nothing more than a slightly more polished GUI. With OS7 I'm expecting the same.
The browser is still horrific.
App developers have to deal with major device OS fragmentation. (BB apps laughable compared to Apple and Android)
The playbook, while a nice idea, isn't something to choose over better tablets out there.
I don't see RIM pulling themselves out of this slide without something radical like a Microsoft purchase. Or better yet, ditch their OS and develop a secure push solution to run on Android.
It's just a matter of time and they'll have to do something.