I'm interested in your esteemed opinions on this subject, so let me ask the question: what at this point is preventing full communion between the Catholic church and the Orthodox churches?
Kolokotronis gave a very nice summary in his #9. There might be bits and pieces that I would frame slightly differently (hey, what kind of Orthodox Christian would I be if *that* weren't true?), but I basically agree with every point.
Depending on whom we are talking to on FR, we seem to encounter people whose articulation of Catholic belief is very close to ours, or as far away as ever. This extreme variability in a church with a supposedly monolithic Magisterium, authoritative Catechisms, etc... frankly make some Orthodox nervous, since it is easy to make the assumption that we are being told whatever it is we want to hear on one hand, and are being told what is really believed on the other. This may not be fair, but Orthodoxy has many centuries of history of "simultaneous warfare and dialogue" with Rome that is hard to overcome in the "collective consciousness."
At this point, the real question is what the reforms of Vatican II really mean. I lay claim to being the founder of the Orthodox branch of the Ratzinger fan club here on FR -- Kolokotronis is the Vice President, I think... :-)
This doesn't mean that I think he's an Orthodox Christian in Roman clothing or anything, but it does mean that I connect with his writings in a way that I haven't with most other Catholic writings I've encountered. He speaks our language to an extent we haven't encountered in a Pope since the Schism (I don't think that's an exaggeration.)
A fundamental requirement for Orthodoxy to consider restoring communion with the Roman Catholic church is for the latter to decide, in practice and from top to bottom, what it believes. As I have pointed out on other threads, I can say with certainty that if Catholics where I live were to choose the church that is closest to them in belief and practice -- it certainly wouldn't be the Orthodox.
I think that B16 has what it takes to combine reform with a return to tradition (and is there really ever a difference?) in a way that could allow Catholicism to develop into an understanding of the faith that we recognize as being the same as ours.