Twitter turns evil on devs of alternative clients, wants it all: http://techcrunch.com/2011/03/11/twitter-ecosystem-guidelines/
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 turns evil on devs of alternative clients, wants it all: http://techcrunch.com/2011/03/11/twitter-ecosystem-guidelines/