It is faster because it uses the IP addresses prepared in a text file rather than querying the master server all the time. You can get a list of the IP's to put in here.
It works with both Urban Terror, Tremulous and Quake 3.
It is provided under the GPL license and has its own Google Code project, where you can learn more about the project and download it here.
This post has been edited by RodgerB: 08 January 2009 - 05:42 AM