Thanks for the update genotonda. We are checking in to the CM Saturday and I hope I get the same treatment as a gold!
As for wifi, I've done some research and here are some places near the CM that have free wifi:
Plaza Caracol Blvd Kukulkan Km 8.5
Forum by the Sea Blvd Kukulkan Km 9
La Isla Cancun (there are 2 locations) Blvd Kukulkan Km 12.5
McDonald's at La Isla Mall also has wifi.
Enjoy