Another one: A mobile geo-aware "hot-or-not" site/app for fashionistas:

1. go to shop x 2. grab the prettiest/craziest/sexiest clothes you can find 3. get into a booth 4. take a phonecam pic of self thru the mirror 5. upload and show to online crowd 6. let the voting commence 7. instant feedback for user (vanity)

I think there's a lot of potential in this for marketeers.

What do you think, is this idea hot or not?