For several months now, our Holy Synod (Holy Orthodox Church in North America) has been conducting a brotherly dialogue with the Holy Synod of the True Orthodox Church of Greece under the Presidency of His Beatitude, Archbishop Makarios of Athens (www.ec-goc.gr). By the mercy and grace of the Lord, our common labors have yielded a God-pleasing fruit and our two Churches have agreed to establish full Eucharistic unity, which will be sealed by a hierarchical concelebration. The dates of the concelebration will be announced separately. This is the OFFICIAL announcement signed by the Presidents of the two Synods.
✠Gregory, Bishop of Brookline
Secretary of the Holy Synod
An English statement can be found here.
A clearer Greek version of the statement can be found here.

The faithful were lead into the Cathedral by His Eminence, Metropolitan Makarios of Toronto and His Grace Bishop Demetrius of Carlisle, along with all the visiting clergy, including: Archimandrite Isaac, Hieromonk Gregory(Bishop-Elect), Hierodeacon Luke of Holy Transfiguration Monastery, Brookline, MA, USA; Fr. Bohdan of Sts. Peter and Paul, Edmonton, AB, Canada; Fr. George of St. Mark Cathedral, Brookline, MA, USA; Fr. Christos of Three Pillars of Orthodoxy Cathedral, Carlisle, PA, USA; and Fr. Deacon George of St. Nicholas Cathedral.