It is a new level of Inviter plugin with powerful tools for your members to import contacts and find friends. This plugin provides not only contacts importing tools, but also allows members to get connected with their Facebook, LinkedIn and Twitter connections which are already signed up on your site and invite whose are not registered yet, and many other features.
In summary, it is a great tool for SocialEngine which allows your users to invite contacts from address book(gmail, yahoo, hotmail), social networks(facebook, linkedin, twitter, foursquare, etc), upload contacts file(csv, txt, etc), find people they likely know within social network and introduce himself to whole network to find many new friends with mutual interests quickly.