I am continually amazed by how much type lag I have when composing a tweet on my 128GB ram, 4GPU workstation. There's definitely a fitting metaphor for @twitter in there somewhere but I don't have the latency stamina to hash it out.
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