No he isn't.
Metropolitan Philaret made this accusation against Patriarch Athenagoras in error.
I have attended two Patriarchal Liturgies celebrated by His All-Holiness Bartholomeos, and the Pope of Rome was not commemorated in the Dyptich of either of them.
I found something, while I was looking for commemorations of the Pope on Google. It's Pope Benedict's observations on his trip to Turkey 1n 2006. Fascinating.http://chiesa.espresso.repubblica.it/articolo/102681?&eng=y
Most interesting were the following parts:
"The pope says nothing new about his meeting with the ecumenical patriarch of Constantinople. But it should be noted that an unprecedented action took place between Benedict XVI and Bartholomew on November 30: they exchanged the sign of peace during the divine liturgy. In the past, this gesture between the pope and the patriarch always took place outside of the celebration. "
"In the footsteps of Paul VI, who met with patriarch Athenagoras, and of John Paul II, who was welcomed by the successor of Athenagoras, Dimitrios I, I renewed with His Holiness Bartholomew I this gesture of great symbolic value, in order to confirm our mutual commitment to continuing along the way toward the reestablishment of full communion between Catholics and Orthodox.
In order to ratify this firm intention, I signed a joint declaration with the ecumenical patriarch, marking a further step along this journey. It was particularly significant that this act took place at the end of the solemn liturgy for the feast of St. Andrew, which I attended and which concluded with the twofold blessing imparted by the bishop of Rome and by the patriarch of Constantinople, the successors of the apostles Peter and Andrew respectively. In this way, we demonstrated that always at the basis of every ecumenical effort is prayer and the constant invocation of the Holy Spirit. "