I really think that RIM is actively trying to commit suicide.
They keep iterating internally on the Playbook without putting something out on the market.
They make developing for the Playbook natively a world of pain with a lousy SDK and tools.
They're working on supporting Android apps on the Playbook, thus taking a doubleshot against native development.
And now they're releasing BBM on Android and iOS, thus negating any real reason to get a Blackberry or a Playbook.
I tend to agree, but perhaps they are looking at people leaving the BBM ecosystem for other platforms, and letting those who remain be able to keep connected to their friends and associates that have jumped for iOS and Android. Makes it easier for them to stay with RIM instead of following the pack? Not sure what the thinking is there. As far as the Playbook goes, I guess they are content just being hardware providers? Letting go of the app ecosystem like that and the potential for subscription services down the line seems odd.