If his Certification of Live Birth was created in 2007 it's the same as if he had an original birth certificate. Legally, unless it's challenged, he is natural born according to Hawaii.
I think it's interesting that fukino made the statement about "natural born". To me it's like setting up birthers to challenge her statement in court.
Obama’s father was not a United States Citizen, so Barack Obama, Jr. could NOT be a Natural Born Citizen.