Apple has refreshed its MacBook Air lineup today, and the laptops now include Intels latest Haswell processors. The entry-level model is now slightly faster with a 1.4GHz Core i5 chip instead of the 1.3GHz processor that was shipping yesterday. Nothing else about Apples acclaimed MacBook Air has changed with this latest revision — at least according to its spec sheet. Itd be great to see Apple increase that default to 8GB, but for now more memory still demands extra from buyers. The MacBook Air also hasnt gained speedier Thunderbolt 2 connectivity with todays update;