Cocos2d-x was one of the Open Source components ported to the PlayBook and announced as part of DevCon America. The intention was always to upstream the changes, and Dale just mentioned that this has indeed been the case.
This integration is targeted for cocos2d-1.0.1-x-0.11.0, due end of the month. The beauty of transparent Open Source development is that all the details are there: the feature request is #907, and you can track all the changes in the community roadmap.
There is a brand-new platform-blackberry-qnx forum at cocos2d-x.org; I’d encourage you to use it. Drop us a comment if you use the component in a PlayBook game and we will highlight it here or at DevBlog; we are always interested in your experiences.
We have not yet decided on exactly how to handle the upstreaming of the ported components. My current thinking is to record this in the new Wiki pages I mentioned in the OSS forum.