An Idea how RIM can license QNX
If RIM does decide to license QNX they should do so that separate the OS from the licensee to BB10.
Basically RIM can whitebox a barebones QNX OS to manufactures like Samsung, HTC, LG, etc, and they can do whatever they want with it. They can skin it and add their own app store and custom native apps.
QNX is a powerful OS and it is incredibly scalable when it comes to hardware. The phone manufacturers who license its will greatly benefit from it. For RIM, not only will they get paid for the licenses but makes the OS more ubiquitous. Developing an app for an appstore on one device can make it easily be ported to another appstore. Similarly to how the Google appstore and Amazon's appstore on the kindle.
But what keeps RIM's BB10 special is that only RIM hardware will take advantage of their backend (BIS/BES) NOC and pushed email/bbm services. By Whiteboxing QNX and licensing to manufacture RIM can maintain their brand and at the same time spread the power of QNX to the masses.