Darling I thought for one second that the title said "Pucci's T**s" and I nearly swallowed my own hairbrush!
Yes, these things change all the time and I usually ask the Flight Deck in these instances. It is almost impossible to police and as long as I have something to tell me that is what the phone does I'm happy to ask.
I have to say that lots of pax genuinely forget to turn their mobiles off. Last week we were taxing out and were almost at the active runway when someone's phone went off and he got up and started getting his bag down from the overhead locker to turn it off. The crew yelled and paged him to sit down and leave it. He was deeply embarassed, poor sausage. I was one second from warning the Captain!
I have an Ipod shuffle and I love it. It is tiny and light and it delivers everything in random order. Super. The numbers of youngsters who murmur "Cool" (one actually said "You Cool, Sister") when I wear mine is astounding. I now want one in full Burberry check to match the rest of my gear!