This integration will allow users to access Friend Connect directly when they log in to their Twitter account. In other words, a user will have access to any of the over nine million sites using Google Friend Connect, through their Twitter accounts.
The Twitter profile of the user will be automatically linked to Friend Connect and it will be possible to tweet about the new site membership, without leaving the site. Users will now be able to hold discussions by posting comments on third-party sites and they will also be able to invite new friends to join the site / group through Twitter.
If a site is already linked to Friend Connect, users can now access it via their Google login as well as through Twitter.