I haven't read the news item, but it's not a real change in the position the Ecumenical Patriarchate has enunciated since the 1960's, during the patriarchy of Athenagoras, of thrice blessed memory. The EP has since that time addressed the Roman Pope as "Elder Brother." The Pope's primacy is recognized consistant with the "First Among Equals" ecclesiology, as is understood by the Orthodox. At the Ecumenical Doxology held at The Phanar one year ago, Pope Benedict was commemorated, first, before Patriarch Bartholomew, at the petition for the presiding hierarch, "Again we pray for our..."
Patriarch Bartholomew would also have to know that most of the Orthodox Church, including those under his immediate jurisdiction, would not follow him into communion with Roman Catholicism. This is, I believe, ecumenical rhetoric; demonstrating his sincerity toward the dialogue/reapproachment process.-BWT