The pope's presence on Twitter was be presented that day by Archbishop Claudio Maria Celli, president of the Pontifical Council for Social Communications; the secretary of that bureau of the Curia, Paul Tighe; Vatican spokesman Federico Lombardi; the director of L'Osservatore Romano, Gian Maria Vian; and the new communications advisor, Greg Burke.
It is unlikely that he himself will write the brief tweets of up to 140 characters, he will of course approve them before they are sent out on the social network, Vatican sources said.
Though the nearly 86-year-old Benedict XVI is no cybernaut himself, Lombardi said, he often asks his collaborators to undertake Internet searches on his behalf.