The Apple's new MacBook Air($1,000-$1,700) comes in 13.3 and 11.6-inch flavors with complete unibody construction. The 11.6''(1366x768 ) model weighs just 2.3 pounds, sporting 64GB-256GB of built-in solid state flash storage. Featuring includes better battery(5 hours using, 30 day standby)
