I was just on there in December. I had too many women to look at to worry about listening to a scanner, so I didn't bring one. I did not notice the staff using traditional HT's. What I saw was really like a cordless phone, most likely a wireless PBX system. I leave a few miles from the port. Next time she's in, I'll do some scanning to see what I can come up with. Truthfully though, since most of the staff is NOT from the US, I wouldn't bank on hearing much intelligible traffic.
Yeah I think it's because for a few years there were no cruise ships in mobile.