I'm both an Italian citizen and an American citizen, which I suppose makes me also an EU citizen. Could I use my dual citizenship to get tax breaks in European tax havens if I live there? Or does my American citizenship prevent that? I saw a thread on Switzerland and I wondered if having dual citizenship would have any bearing on that discussion, or if the dual citizenship could be used in other ways for tax breaks.
So before you get your Italian passport next month, I recommend you either consult an immigration attorney, or at least search the web for the respective laws. I'm sure if you run an search on US dual citizenship, you'll get lots of hits and comments from people in similar situations.