Some people speculate that the reputedly rock-solid real-time QNX OS which RIM bought up several years ago will facilitate RIM's possible encore.

I don't agree with it. RIM not only has a huge product problem, it but also has a HUGE marketing problem, because it's been forced to be enveloped in the consumer market, which is very different than the enterprise market it'd been used to, by the market shifts, especially the nascent but widely adopted BYOD policies implemented in many companies.