Oops, I had reported all of this in my Sea Mail thread. There is supposed to be a form of wifi, with hot spots in the Library, Navigator Lounge and Vista Lounge. When I asked earlier in the trip, I was told that it isn't there yet and she was vague about when it would be. I haven't seen her since, to ask.
As to cell phone service, both Suzie and I tried to make phone calls early in the trip and we both got "call failed". This was when we were anchored in Cozumel, and we haven't tried since.