I'm sure their QNX based OS will be great what I'm not sure about is if people will still be interested in owning BB or if RIM will still be a major player when they finally release it on a phone, which is of course -I would safely assume- their primary revenue source.
In the last 3-5 years their primary innovation has been on minor HW updates for their phones and making them thinner and lighter, while other companies have been innovating a lot in software and touch interfaces.
In my opinion RIM made a really big mistake by focusing a lot of their resources on the Playbook and leaving their smartphone business on a lesser priority. It is no secret that the tablet market is non-existent compared to the phone business. And today there are no incentives to chose a Blackberry over an Android or iOS phone, well only if you need or are addicted to BB messenger as I am *hides face in embarrassment* .
I never understood the obsession with BBM chat. Are people still 13 year old that they need to group chat? Or are they trying to save $ on text messaging? If the latter, just get Whatsapp. With the Iphone you also get to see your entire message history with the person you are texting with.
Blackberry is only good for the corporate sector where you need the best network security (and because "suits" are too slow to adopt modern technology and too risk averse to abandon what they know).
For the average consumer though Blackberry fails on all accounts. They don't offer sleak looking, thing phones, they have small screens which makes them useless for watching movies/videos/or browsing the internet, their hardware is slow (no dual core, no high end GPU), their OS is not customizable and has no widgets, quality app store?
In other words, if you want a phone with multimedia functionality, there is no way you'd choose a Blackberry over Android or iPhone device.