If you missed the iTunes/iPod refresh keynote, it's here: http://www.apple.com/quicktime/qtv/letsrock/
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
If you missed the iTunes/iPod refresh keynote, it's here: http://www.apple.com/quicktime/qtv/letsrock/