Just got a reply from talex.tv (very interesting) :
"It works in much the same way as P2P fileshare clients except that instead of downloading files, the users download streams. These streams are then exchanged in real-time with other users. No data is stored locally on any machine connected to the network. Users can only distribute (relay) the stream when the user is actively listening to or viewing the streaming media. If the user disconnects, all distributing is stopped and any downstream users are immediately redirected to the Talex.TV server or other distributing users without interruption or skipping."
The above quote is taken from http://www.talex*****technology.php
In essence ... the more users connected = the more additional users that can connect.
We look forward to helping you get the most out of your media.
Talex TV Customer Service