In the London Times, the Anglican bishop of Durham, Tom Wright states that:
In the slow-moving train crash of international Anglicanism, a decision taken in California has finally brought a large coach off the rails altogether. The House of Bishops of the Episcopal Church (TEC) in the United States has voted decisively to allow in principle the appointment, to all orders of ministry, of persons in active same-sex relationships. This marks a clear break with the rest of the Anglican Communion.
Both the bishops and deputies (lay and clergy) of TEC knew exactly what they were doing. They were telling the Archbishop of Canterbury and the other “instruments of communion” that they were ignoring their plea for a moratorium on consecrating practising homosexuals as bishops. They were rejecting the two things the Archbishop of Canterbury has named as the pathway to the future — the Windsor Report (2004) and the proposed Covenant (whose aim is to provide a modus operandi for the Anglican Communion). They were formalising the schism they initiated six years ago when they consecrated as bishop a divorced man in an active same-sex relationship, against the Primates’ unanimous statement that this would “tear the fabric of the Communion at its deepest level”. In Windsor’s language, they have chosen to “walk apart”.
Granted, the TEC resolution indicates a strong willingness to remain within the Anglican Communion. But saying “we want to stay in, but we insist on rewriting the rules” is cynical double-think. We should not be fooled.
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The “large coach is off the rails altogether” implies decoupling that coach from the rest of the train is extremely urgent.
There’s a response to Wright’s editorial at Ruth Gledhill’s blog, with a wide range of comments, and also a follow-up (with links).
Maude's Tavern 
Wright concludes:
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The question then presses: who, in the US, is now in communion with the great majority of the Anglican world? It would be too hasty to answer, the newly formed “province” of the “Anglican Church in North America”. One can sympathise with some of the motivations of these breakaway Episcopalians. But we should not forget the Episcopalian bishops, who, doggedly loyal to their own Church, and to the expressed mind of the wider Communion, voted against the current resolution. Nor should we forget the many parishes and worshippers who take the same stance. There are many American Episcopalians, inside and outside the present TEC, who are eager to sign the proposed Covenant. That aspiration must be honoured.
Contrary to some who have recently adopted the phrase, there is already a “fellowship of confessing Anglicans”. It is called the Anglican Communion. The Episcopal Church is now distancing itself from that fellowship. Ways must be found for all in America who want to be loyal to it, and to scripture, tradition and Jesus, to have that loyalty recognised and affirmed at the highest level.