This might have changed. There was a time when he wanted to create a startup hub in Germany and invited people. I remember an interview with him, which I cannot find anymore, where he expressed his frustration with German banks and their lack of openness to new ideas. I've never heard about his startup project and neither the software project he was working on back then (TimeDoubler IIRC) again, so I assume they didn't materialize and he retreated from public life.
I also once read in a thread that his home castle and the one he was receiving guests for the startup hup where separate ones. I could not find reliable source for this, so it may or may not be true.
EDIT: I just found that his website has something to say about it:
"This is not a case of Luddite but Peace'nQuiet."
http://kai.sub.blue