Myself, along with two other LessWrongians, will be visiting Rome. I previously described setting up a meetup group in Budapest. http://lesswrong.com/lw/bc2/setting_up_lw_meetups_in_unlikely_places_positive/ I will be attempting the same in Rome. Do come and bring friends if you are in the area! Suggestions for a great central cafe/equivalent to host the meetup are very welcome - I will update the exact location once it is settled.

UPDATE: Caffé Doria as the meeting place.