Dear Massimo (and other Arduino-developers),
We once met at a Mediamatic Workshop down in Amsterdam. Currently, I am doing a master course at the Technical University of Eindhoven (south of the Netherlands) in Industrial/Interaction design and I convinced a lot of people (mostly mac-based) to use Arduino as an alternative PIC to create prototypes. Lot of them are into it now, but still, lots of questions that I cannot answer are there. I saw/see this as an opportunity. Would you be interested in giving a workshop here? See link http://w3.id.tue.nl/nl/
for more information about the course.
Hope you're interested,