He's no Reagan when it comes to jokes, but that's all he was doing. Obama made a joke of it a time or two and there was no outcry on him. Let's simply get over it and focus on more pressing issues.
Of course Obama gets to joke about it. What the hell.
And I don't know whether this was Mittens being Mittens, a joke (doubt it) or racial pandering. I would not be surprised if it was. Why do so many people think it wasn't? Obviously that sort of thing does move some swing voters in crucial states, especially the "he's not american" or "he doesn't get america" attacks. Let's not forget Sununu said something very similar a few weeks back.
