Thanks for the replies.
IF it was just for, I also wouldn't worry about it. Aside from not worrying in general, I am not expecting the police to hassle me since 1) I have no intention of driving obnoxiosly and 2) most of the places I would want to really use the extra effort require driving to get there (given work, etc).
However, if I become an electric bike tour operator/guide, I face an entirely different set of responsibilities and risks. I'm not too worried about the police as again, I don't really see anyone behaving poorly while in the tour.
However, I have to have insurance, etc.. All this requires 'legality'.
There are lots of other problems with this idea, but maybe those have some sort of work-around. The legality question is interesting though.
For example, suppose that I have two motors. One is pedalelec, the other second system is for hills. Suppose that it is legal for me to have both systems as long as one is 'disabled' while on the road. At what point do the police have the right to inspect the rider to determine if the second system is in fact disabled? I suppose here in Italy the answer is any time they want, not theoretically but practically at least.
But I think it is an interesting question. I wish someone with legal expereince could answer it.