I honestly don't see the utility of this. I don't think anybody wants to broadcast exactly where they are, even to their friends, and narrowing it down to what city you're in seems fairly useless for everyone
"I don't think anybody wants to broadcast exactly where they are, even to their friends"
This is wrong.
"Oh, you were at the mall this afternoon too? I wish I knew you were there. We could have hung out."
Knowing where your friends are and telling your friends where you are is clearly very useful. The problem is doing it in a way that people feel comfortable with.
