Today, Apple updated its MacBook Air notebooks. They've been upgraded with Intel Core i5 and Core i7 "Ivy Bridge" processors and USB 3.0 ports. Additional features include an LED-backlit display, Intel HD 4000 graphics (up to 25% faster than the previous model), 802.11n wireless, full-size backlit keyboard, Multi-Touch trackpad, 720p FaceTime camera, Bluetooth 4.0, Thunderbolt port, and up to 7 hours of battery life. The base 11.6" and 13.3" models cost $999 and $1,199, respectively, and they'll be available later today.