BlackBerry will continue to support OS 10, but future is uncertain
We continue to support the BlackBerry 10 operating system; some companies are interested in licensing it for handsets. If it's a solid business model going forward, we'll work with a 3rd manufacturer. But we're not close enough to say we're going to do that.
BlackBerry plans to outsource the development of smartphones powered by OS 10, but its engineers will continue to work on the software part. John Chen, the company's CEO, confirmed a while ago that BlackBerry is very careful about choosing its partners.
We're very careful who we're working with. We want to be very positive; the contracts are long and complex and we're involved in every stage of the way. We'll know what's going on at every stage of the manufacturing process - and we'll still inject our hardware keys at the right moment.
source: The Register via CrackBerry
Things that are NOT allowed: