Fuller account, with some interesting quotes, from the Anglican Journal: http://www.anglicanjournal.com/nc/100/article/synod-narrowly-defeats-same-sex-blessings/

The chaos (de facto local option) on the ground will increase (everyone knows this).  I don’t think the motion that was defeated was as significant as the one that narrowly passed.  In affirming SSB as consistent with core doctrine the institution has corrupted itself in such a way to make the final outcome inevitable, and people pushing for this revisioning of Christian sexual ethics will seize on this.  In the past orthodox priests have been able to say, “well, individual ultra-liberal priests, parishes and dioceses can do what they want, but the canons of the national church are clear”.  This is no longer true.