Joey - overall it's a good analysis and as far as I can tell everything is right.
His coverage of scrutiny the Court used is clear and is something I haven't really discussed here. (and it is very relevant!)
However, he does skirt around some of the more complex nuances, in all fairness, probably because there are no answers yet and he doesn't want to conjecture.
First of all, he leaves off the Prop 8 ruling, which again applies only to California. (perhaps that's in another article?)
The other component left out is what's causing lots of discussion here and in many other channels - what about gay couples who are legally married in states allowing gay marriage and move into states that don't allow gay marriage?
The consensus on that is the state will not have to recognize them as married in their view since only section 3 of DOMA was struck down while it's a little confusing if the federal government would say since their current doesn't recognize them, they're no longer married, or, if for federal purposes, since they were once married, they still are. Again that's a question the President will be able to sort out with his legal team and enforce however he wants pending court challenges that will help clear up lots of gaps in these rulings. While it may be great right now that the President has say in this since from all indications he would be pro-gay rights, another President could just as easily take the opposite approach and this will be best left to the courts to decide.
Scratch and claw for every day you're worth!
Make them drag you screaming from life, keep dreaming
You'll live forever here on earth.