When Cardinal Kasper made that announcement, Bishop Kirill (of external Church relations of the MP) was in Bari. EP, Antioch and Alexandria notwithstanding, I would venture to say that fact is significant, since Moscow halds the numerical key to Eastern Orthodoxy.
" I would venture to say that fact is significant, since Moscow halds the numerical key to Eastern Orthodoxy."
Like I said, +Benedict XVI is a very smart man! :)