I like the idea of followers in Twitter. I can follow my friends, celebrities and influencial people and other people can also follow me.
Not sure whether there is already a similar social service out of there, but I woul like to have a way to instantaneously communicate with the people around my geo-location that are willing to listen.
I believe that this would be an interesting feature for establishing new friendships around a place (e.g. a pub, a bistro, a disco, and so on and forth), or for getting help when I am in new area. Probably, there should also be a way to tag annoying people and for switching this feature on and off.
Doe anyone know whether there is already such social service?