Just found this on the net:

http://www.carbonforbikes.com

It seems to be a solid chain lubrication system based on graphite. Asked the vendor for a Tener� 2008 setup and I'm still waiting on a reply. They run for 150,00 Euros for first time instalation and 40,00 Euros for the replacement graphite block. It's supposed to last and lubricate the chain for approx. 6000km.