This has been true, but recently RIM has moved towards a system more similar to iOS and Android than their previous products. The Playbook is the first product in this new technology stack.
I imagine that they are basing their future growth around other products based on this new stack. They are behind, but they may still catch up enough to do well. After all, if Apple has proven anything it's that execution matters a whole lot. More so even than features.
Android is a good competitor to iOS only because they have both the features and execution down well enough. Apple may still have an edge in polish, but it's diminishing.
I imagine that they are basing their future growth around other products based on this new stack. They are behind, but they may still catch up enough to do well. After all, if Apple has proven anything it's that execution matters a whole lot. More so even than features.
Android is a good competitor to iOS only because they have both the features and execution down well enough. Apple may still have an edge in polish, but it's diminishing.