Just pondering, why would it matter whether the US is blessed or cursed? And would this extend to all 300 million Americans of various religions and cultures? And if it indeed is 'cursed', who is 'cursing' it? (I'm not even sure if curses actually exist)
Probably a more productive thing that we can do is to pray for it, that He will enlighten the hearts and minds for its leaders (who incidentally are being appointed right now as I write this). Being such an influential country, most things that happen there are bound to filter down to the rest of the world, especially in these economically uncertain times.
Let us not judge Obama or any American as we have no right to do so, but rather on how we can help them, especially those who are hurting, through our prayers and charitable efforts.