The courts have thus far refused to hear the merits of the cases, but only on the basis of technicalities...
They have not allowed anyone for officially ask the question. That can hardly be defined as disagreeing with the merits of the question...
Don't hold your breath waiting for any court to agree with the claims of the lawsuits.
His mother was born in the U.S. and lived here continually until some time after he was born. The court is never going to claim she wasn't a natural born citizen of the U.S. at the time of Obama's birth just because she was young when she had him. That would mean that we have a whole lot of children that have been, are being and will be born who would have to be classified as not natural born.
Every other argument I've seen (except, perhaps the fact that he traveled during college with something other than a U.S. passport) has been equally silly.
I don't know the rules regarding passports, but I doubt the court is going to claim Obama is ineligible to run for President on the sole basis of the passport he traveled on.