What exactly is "Vatican Use"(involving Anglican Communion)?

I am still confused on what the broad concept. The only thing I know about it is that it was an agreement between the Anglican Communion and the Roman Catholic Church: something to do with using Catholic liturgy in the Anglican Communion. Can anyone please explain to me what exactly it is, and how it will affect Episcopal/Anglican Churches.

I don't know, but I starred you so hopefully one of my contacts can offer insight.

if you are talking about the 400,000 Anglicans world wide who wish to come home to Rome, talks are already under way. and it seems that Easter is the time when they will be accepted .
they are departing from the Anglican/ episcopalian churches over the gay ministers ,male and female, plus other anomalies

I had to look this up as I had never heard of it before.

If I understand it correctly, it comes from the concept of "Anglican Use" Catholic churches found in the US. These churches use an Anglican form for their services, yet are under the auspices of the Roman Catholic Church (Latin Rite). In the same sense, the new "Vatican Use" will exist in Anglican parishes and will give disaffected Roman Catholics the opportunity to join a new church while retaining the liturgy of the Latin Rite.
I found the following in the Daily Episcopalian:
"The establishment of 'Vatican Use' in the Church of England will allow those who, in conscience, cannot accept all of the doctrinal and ecclesiastical positions of the Pope of Rome to move to the Anglican communion...
"We are especially welcoming to Roman Catholic priests who have been forced out of the active priesthood because they wish to be married,...we welcome those Roman Catholic women who feel that God is calling them to a vocation as priests and bishops in the Church of God."(Dr Rowan Williams, Archbishop of Canterbury)
According to Vincent Nichols, the Roman Catholic Archbishop of Westminster, in the same article, "We welcome this historic realignment of the Anglican and Roman Catholic churches into two distinct confessions, allowing people to make a clear choice between the two. The Holy Father has sent his personal blessings on the 'Vatican Use' to his Grace the Archbishop and expressed his hope that this initiative will be duplicated throughout the world."