I saw this in Milan on my way back from Perugia, @benwizner. I'm under the impression it means somethingpic.twitter.com/273ompW5GR
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.