A hinted-at Acer ultrabook may have had its first public sighting through leaked renders and details in Vietnam. The 13.3-inch Aspire 3951 would borrow more than a few cues from the MacBook Air Intel's ultrabook spec is meant to imitate and would have a supposedly 0.51-inch thick, aluminum, 3.09-pound shell. In a nod to the Dell Adamo, however, Sohoa's look showed that most of the ports would be moved to the back, where the hinge design would make sure they stayed available.