Hi dietmar,
I really like proxmox, so if I can help in anyway, please let me know.
Currently I am a translator for the linux distribution sidux
http://www.sidux.com/ for the dutch language. I have already showed some people the website and video's of proxmox and some have already downloaded it, so I am surely promoting it.
I am someone who like to test things, and after a quick proxmox test I have decided to make it my virtualisation platform of use. I also gave a company the hint to look at it, for thier possible clients.
Stefan (aka eislon)