Far out, man, far out. Reminds me of McCain's "I don' trust him... he's an Arab" video from the campaign.
At first glance, I also get the impression that some people are easily confusing "natural-born citizen" with "U.S. citizen", suggesting that Obama is no American at all (which would make him what... a Kenyan citizen? a stateless person?). But that's not even the issue, I hope.
But I agree with htmldon that this "debate" only proves that conservative hacks are just as retarded as liberal hacks ("OMG, Bush stole the election again" etc.)