Sorry for the long delay and I expect I'll need to re-ask this question.
I do not need documentation on CMIS. I was on the technical committee at OASIS that created the standard. What I want to get is a functional Alfresco download running that includes the CMIS API. I also would like to have the source code for both. At one point when Alfresco was its own master it was possible to download the source code to build Alfresco. Subsequently, things "tightened" up significantly and Alfresco was further purchased by Hyland.
That said, the question also remains on whether the CMIS API is also open source and included in the community edition download or not.