We never heard anything from Italia.pm. We didn't organize things in secret: I think I contacted most of the Italian Perl programmers here. We posted on it.comp.lang.perl, too. I think an active Italia.pm should monitor these things, so I take this lack of replies from Italia.pm as a proof that it no longer exists.
While I'm writing, Italia.pm's mailing list has two subscribers. One is bepi, who subscribed just to ask who to majordomo :)
You correctly ask about the relationship between http://www.perl.it and Italia.pm. (Re)creating Italia.pm was in our plans, but perl.it could (and probably will)be more than this.
By the way, your node had a consequence: we're trying to contact Italia.pm's founder, in order to ask him to join us in our efforts. So, thank you again :)