Bill Hoffman gave a Google Tech Talk on 7 December 2009 at Google's New York city office on CMake, CTest, CDash and CPack. Google recently made the talk available on YouTube.
I wish I could have made it down with Bill and Will to see Google's New York office. For anyone attending Camp KDE, I will be discussing some of these concepts there too, but with a focus on the software process and testing components of CMake.
Soon after, CNN picked up the name and used it.
Since that time other organizations have adopted it.
At this point I doubt that anyone can claim copyright to the name.
Ed McKee