@avlidienbrunn It was very nice to meet you. Hope you enjoyed your stay. Here is the link to the GPS tracking stuff: http://h4des.org/blog/index.php?/archives/342-Introduction-GPS-tracking-system.html …
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