What do you think will be the most significant technological advancement in the next 20 years? http://bit.ly/20rN8e
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
What do you think will be the most significant technological advancement in the next 20 years? http://bit.ly/20rN8e