If you youtube "Isny im Allgau" you'll see some cool footage of this year's event with a good showing of vintage KTMs. Thanks to our friends at Vinduro for pointing it out.
Here's an example:
http://www.youtube.com/watch?v=qK7dCp3pVd4
Mars Attacks!
(http://i24.photobucket.com/albums/c36/80fj40/marsattacks.jpg)