Palin Voted for Obama?

Is it possible? Could it have been? A few days ago I ran into a person that ended up having close ties to Governor Palin and we started talking about different things, among them the presidential election. As we were talking she let me know that Palin has disclosed to a few close friends that she actually voted for Obama instead of McCain. I couldn't believe it at first, I thought she was just pulling my leg. I had told her about how I think the Obama African policy will not change much in actually improving the lives of millions of disadvantaged Africans. She said it probably would have been worse under McCain and that Palin actually voted against McCain because a lot of areas would have been worse should he have been elected. That, she said, was not the only reason why she did so, but it was a big factor.
With the relationships between the two camps during the campaign, it's not unimaginable that she would vote for her opponent, although I seriously doubt it.
But, once again, is Obama really going to curb the imperialistic and oppressive policies of the US in regards to Africa? Will the exploitation of labor and resources end or be drastically reduced during his tenure as president? Would it have been significantly different had McCain been president? I doubt it.