burp
they should do a service like blip.fm, only for food.
they should call it burp.
You enter the food you are eating at the moment, and get a list of people eating the same food.
If you want, you can add these people to your network.
People could also add you to their network if you eat something they would like to eat too, like Marzipan, for example.
I think that’s a really good idea.