In Iowa last week he even let loose with this pearl:
"…I believe that the development of children is enhanced by having a male and a female as part of their upbringing in their home. Even when there's a divorce, you still have a mom and a dad. And even where one member of the partnership may pass away, the memory and the characteristics of that gender, of that partner influence the development of a child."
So, yeah, according to Mitt, a dead parent is preferable to a gay parent.