Brian: Yup, it definitely is a victory for Obama and he sorely needed some good news, especially after the month he had.
However, the GOP will make hay of this, too. Romney raised $1MM in 3 hours following the ruling, when he called for repeal.
I think the GOP would have been more hurt by Obamacare being overturned than the Dems. Now, the GOP can campaign against ACA, even though I believe the chances of repeal are nil.