The 15-Inch MacBook Air: Apple's Best Portable Choice.
Apple's VP of hardware engineering and marketing employee discussed the design of the new 15-inch MacBook Air, including its larger display and two additional speakers. The 15-inch MacBook Air having the same battery life as the 13-inch model is the result of "thermal control loops and software optimizations." Apple believes the existing port selection is "very complimentary to the thin and light design of the product."