slartabartfast
There used to be a Cakewalk hosted page on the developer's exchange. I have spent way too much time trying to find it.
When I found the site I linked above, I was doing a generic search and Google returned Cake's developers link, but it was pointing to a dead page. I think that link has since fallen off the Google search, but I was unable to find any "programming guide" that wasn't associated with a third party site.
I am fairly certain that CAL is baked into the SONAR code, so is unlikely to see it "vanish" without a significant overhaul. There is really no reason to go to the trouble of removing it that I can see, but is also unlikely to see further development.