Gay covenant marriage

Joe Carter at Evangelical Outpost explores the issue of gay marriage and monogamy, asking:

Is monogamy a “straight” ideal that may or may not be useful in gay relationships? If so, then this is not what most people, even the supporters of same-sex marriage, have in mind when they discuss this issue. The subject is already contentious enough when it is thought that these “marriages” are going to be exclusive; what will happen when it's discovered that what's being advocated is “same-sex open marriage?”  Perhaps to avoid this perception gay marriage advocates should press for “gay covenant marriage.”

Rob