Makes me think back to Foursquare - it didn't tell anyone anything in advance but it did tell you who else was at your exact location.
Depending on your permissions and if you would let it know about Facebook events, calendar events, etc. then you might get notifications or see when someone is going to be going to the same restaurant, etc. I think events is the key, while you're focused a bit on city. They do specify event so that's something, perhaps.
Depending on your permissions and if you would let it know about Facebook events, calendar events, etc. then you might get notifications or see when someone is going to be going to the same restaurant, etc. I think events is the key, while you're focused a bit on city. They do specify event so that's something, perhaps.