Poll: Have You Ever Responded to Check-Ins?

If you have seen Facebook posts, Tweets, or anything else where you see your friend posted: “I just checked in at Big Daddy’s Java Bar!” or something similar, then you know what I’m talking about. They use FourSquare, GoWalla, and other sites or even the functionality built into Facebook and Twitter.

I see these posts on a regular basis. And other than letting your stalkers know where you are, I’m trying to see the practical purpose for them.

Basically, I wonder if you have ever

• decided to join a friend at the location they shared
• chose to call and ask them to pick up something from the location they are at
• used this to throw a flash-mob zombie surprise party for a friend
• found some other use that has not occurred to me at all

So share the poll far and wide and let’s find out: Has Anyone Ever Made Use of Someone Else’s Check-In?