Hey there,
So thats a little piece of information i didnt know!! Thats a shame you are living in luzern (although its one of my favourite cities!) as i am looking for a business partner with a basic knowledge of 'child' german!!!
I am in the process of seeing how much paper work is included in starting up a new business like this...we are in switzerland after all!!!

And to wether my german skills can face up to the reality of it all!!
Anyway keep me posted of any further information you may come across. Would be willing to travel anywhere for a few days to do a course in ENGLISH!!!
Thanks
Jenny