It has issues (lack of landmarks, hidden primary gestures) but Twitter for iPad is an awesome step towards an elegant Gestural UI.
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
It has issues (lack of landmarks, hidden primary gestures) but Twitter for iPad is an awesome step towards an elegant Gestural UI.