Martin, I see the same as you, I have been getting almost 70% foreign traffic. That means no sales.
Google just did a deep craw of my info site and the related webstore yesterday. I have never seen them hit the website that hard. They gave me 403 errors on all the image and pdf directories. And hundreds of 404 errors from almost 5 years ago.
Matt Cutts blog claims he has been on vacation pretty much the whole month of November, and is why he has not been posting anything. It sure seems like the whole crew took off with him.