Anyway, I don't see what the big deal is. He beat his supposed "idol" in a final so at least he doesn't "bend over" for him like people suggest that others do for Nadal.
And I don't think he "gifted" the U.S. Open for Nadal; I think that Djokovic didn't play to "win", while Nadal did. Overcoming Federer in the semis was already a major milestone for him. I think that Djoker wanted THAT win more than the one against Nadal.