WIRED reports on an interesting technology that is being rolled out for porn, but I think has some potentially interesting marketing possibilities (Porn Stores Turn Into Clip Joints).

Vivid Entertainment, one of the leading suppliers of adult entertainment, has licensed a system that will let shoppers preview racy trailers on their camera phones just by scanning the bar code on the box. Now that's handheld entertainment.

I'm not sure why this should be limited to pornography. Why not bar codes on movie ads in newspapers, magazines, or the street? You could download clips of the movie, of course, but why not ring tones? Screensavers? Minigames? People would actually look at the advertisements. It wouldn't be limited to movies, either. You could do it for music, television, videogames ... basically any sort of mass produced content. There could be special codes for Happy Meals. What can I say? I like the idea. Cellphone companies should too.