It's not plausible to me that a person with a 110 IQ could graduate magna cum laude from the top law school in the country. Since the tests on the most important courses are all taken anonymously, there is no way to do this via "affirmative action". I also don't believe that Krauthammer could have engaged in dinner conversation with Obama for several hours and not detected that Obama was substantially less intelligent than himself if this was indeed the case.
Of course Obama is not a genius, but he is clearly a smart guy. Lots of top people in Washington including the military, and many foreign leaders have dealt with him one-on-one and not one of them has come out and said the Emperor has no intellectual clothes. I don't believe that you friend's "inside information" is accurate.
I do agree with the point in the article that there are different kinds of smart. But Obama is not missing out on all of these.
You make some good points and of course I have no way to check a second source. I will say this President got to be President without that info or much else in the way of official background being public. He could have had someone else take the tests for him or he could be a bloody genius.