'He talks too much," a Saudi academic in Jeddah, who had once been smitten with Barack Obama, recently observed to me of America's 44th president. He has wearied of Mr. Obama and now does not bother with the Obama oratory.

He is hardly alone, this academic. In the endless chatter of this region, and in the commentaries offered by the press, the theme is one of disappointment. In the Arab-Islamic world, Barack Obama has come down to earth.

He...