You all know I love Twitter.
Here's a great idea being presented. Why don't WE buy it as a co op?
#rpDUB #BuyTwitterpic.twitter.com/ShmUjcQ5xl
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
And therein lies the problem. Where do you think the majority of users are? 
Everywhere else :)
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.