One of the more elusive dreams of emerging VoIP services is integration with social networks. The idea is compelling: if tens or hundreds of millions of people make calls to their social network "friends," someone will be able make a lot of money from it. So far, though, no one has had much success in appealing to such users. A startup that presented at the recent DEMO conference is trying to change that. OrganIP, run by France-based Digitrad, is trying to turn social networks into giant phone books.