I don't think I've ever noticed an iPhone in a TV show or a film yet they're ubiquitous if you're out in London. Equally the number of Apple computers you see in US films and TVs implies they have a 50% market penetration or something.
And how many times do you see clamshell phones? No one ever seems to have a phone that opens out these days they're everywhere in films and TV.
I don't really have a point.