Dan Boone from ADI posted this answer on their forum on November 11.
"It's on the list.
The hardware is easy.
C-Max support is more difficult."
So, I'll eat some crow about my response above. The original thread started on March 29, and had been kept alive by bumps, until Dan finally posted the above.
Guess we will have to wait on the next version of CMax to see Zwave support.