Obama is Muslim to Muslims?

From Lee Smith at Michael J. Totten's Middle East Journal:

"Barack Obama's father was Muslim and therefore, according to Islamic law, so is the candidate. In spite of the Quranic verses explaining that there is no compulsion in religion, a Muslim child takes the religion of his or her father.

The point of course is not that Obama is really a Muslim, because in America he is whatever he says he is. American ideas about such things as choice, religion, freedom of expression - including the freedom to choose your own faith - are different from the rest of much of the world. For us, a man is whatever religion he wants to practice, or not practice. But for Muslims around the world, non-American Muslims at any rate, they can only ever see Barack Hussein Obama as a Muslim."

Obama, of course, professes to be a Christian. I am wondering if there are any practicing Muslims out there reading this that can speak to this point? Do you see him as Muslim? How would this affect his presidency, if he were to become President?

h/t BigDog