Phone cameras or camera phones
I use the camera in my mobile phone once, and then I got tired of it when it turned out I couldn't figure out how to transfer the pictures to my computer. So I have not been interested since.
But similarly to the arena of ring tones and sports, I'm in a minority with my lack of interest. It seems the future of snap-shot photography belongs to the phone camera and online sharing sites.
I am curious by the way, about young people's acceptance of tiny pictures and tinny music. They seem perfectly fine with viewing pictures on a 2-inch screen, and to listen to music via an external micro-speaker in their MP3-enabled phone! I just don't get how that kind of experience can give them any kind of pleasure.