What is of much greater importance than this in regard to Obama's birth: Did Obama become an Indonesian citizen? Did he lose his U.S. citizenship at that time? When did he regain U.S. citizenship? Is this a disqualifier for the term "natural born Citizen"?
And another angle: As Barack Obama's father was a British subject, is one U.S. citizen parent enough to establish "natural born Citizen" status for a child who is even born on U.S. soil? And what about Ann Dunham possibly not having been old enough to have had her citizenship and the location of birth together fully trump the nature of citizenship that would partly come down from the father?