a further update: The Italian government finally published the official guidelines for adopting FOSS in the public sector -
Thanks for this good updating article. You may also be interested in "Free and open source software in the Italian public administration: fundamental law principles", an article by Simone Aliprandi and Carlo Piana, published on International Free and Open Source Software Law Review - Vol. 5, No. 1 (2013) and available at http://aliprandi.blogspot.it/2013/04/foss-italian-public-administration.html (under a CC license).