In my opinion is that they have no permision to from gov agencies to releas such an application
Don't forget in saudi arabia bb service is hystory allready. And in Italy were disscusions to ban Blackberry on the market because of this reasons.
That's an interesting theory but I think we would have known by now if Skype wanted to release Skype for BlackBerry and the powers that be would not let them.
Most major technology companies would have the decency to post an answer to your theory but then this is Skype. Worldwide specialist in Lies and Silence since 2009.