Hi Alessandro,
I'm coming back to you about the Berlin Arduino workshop.
As planned I have talked to Duana (in CC) about it, but also to more people with programming background and some small experience in hardware hacking and I would say there is definitely an interest for a workshop to get some coaches trained to this, or as we decided to call it during our last meeting: "Arduino for coaches".
One more thing: co.up is booked for the BeMyApp Mobile Game hackathon on the week-end of the 9th-10th February (the week-end we were thinking of for that workshop), so is there another date you'd like to organise it?
If you still target early to mid-February we should probably get started with the announcement and such, not that we need to make a lot of publicity around it (you said you wanted a small number of people, ~12 attendants) but the participants will need to buy their Arduino board and equipment.
Really looking forward to this! (I will def. sign up to this workshop)
Best,
Amélie