The government have now published their proposals for enshrining same-sex marriage, and they can be read here.
http://www.publications.parliament.uk/pa/bills/cbill/2012-2013/0126/cbill_2012-20130126_en_1.htm
Most newspapers have reported this, although each has chosen to lead with a particular angle on the story - a typical example is in the telegraph, who have chosen the religious opposition.
http://www.telegraph.co.uk/news/religion/9830044/Gay-marriage-Catholic-Church-tells-priests-time-to-act-is-now.html
All of them have, though, picked up on the surprise inclusion relating to divorce, in which "Only conduct between the respondent and a person of the opposite sex may constitute adultery......”.
This is said to arise from legal disagreements as to what constitutes adultery in same-sex relationships. The upshot is that this surprise clause would introduce inequality in the divorce courts. This could lead to the abolition of the concept of adultery.
So, is it important that entrants into a marriage undertake to remain faithful, and thus more legal thought needs to be applied to the matter? Or is adultery an outdated concept which it would be entirely right to sweep away for everybody?