I like to think we'll save a generation from this with Chromebookspic.twitter.com/uoQx9alFll
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
You can take it full-screen, however, and it works well that way (albeit with a FF restart).
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.