Interesting:

http://inamerica.blogs.cnn.com/2012/04/03/same-sex-couples-file-suit-against-defense-of-marriage-act/

If this case were to make it to the Supreme Court, it would be a little different from what I predicted would happen, which would be a simple case revolving around full faith and credit. Still, this is a perfectly legitimate way of going about it (although I would fear, in this case, the justices would vote, as they have in the recent past, in a limited way that applies only to this case, or perhaps only for immigration status, and nothing else; still, the precedent would be undeniable).