Oh, no, not cell phones on cruise ships!!!!!!!!! As a person who works in an office full of constantly-ringing telephones, I can't stand the thought of cell phones going off on cruise ships. If people really have to stay in touch, why can't they just use the internet.
The cells phones are now everywhere. Last summer, I had to move three times at a beach to get away from cell phone users. It was so sad to see fathers and mothers sitting on beach chairs conducting business while their kids were playing by themselves. Every day on the commuter trains, someone is conducting business on the cell phones and/or yelling at their kids, husbands, etc. I could go on ... It's not that I hate cells phones - I have one myself but I would never use one on holidays except perhaps for emergencies.
One of the reasons I thoroughly enjoy cruising is that I can truly get away from the stress of work. It's such a pleasure to talk to people sitting next to you rather than listening to their cell phone conversations. I guarantee that once cell phones are allowed, it will never be the same.