This kind of platform volatility doesn't bode well for developers. Who wants to invest their time learning something that will just be deprecated shortly after? Before RIM started hyping playbook, 8 months ago they were hyping OS 6. Now you don't hear anything about OS 6.
This looks to me like almost exactly the same situation as with Nokia and Symbian. At this point, it's fairly obvious MeeGo is the way forward for the company, and they're trying to put Symbian out to pasture gently, but there's really no way to do it without the appearance of platform volatility.
