A thin notebook drew a fat crowd on Tuesday at Macworld Expo as Apple CEO Steve Jobs introduced the MacBook Air, a laptop that's less than an inch thick.

Unlike other ultralight laptops, the Air has a full-size keyboard and a 13.3in screen, though it doesn't have an optical drive. (See - First look: MacBook Air.)

This year's keynote didn't generate as much excitement as last year's iPhone launch, but Jobs brought back some of the cellular thrill with new software for the iPhone, including the ability to find yourself on a map, grab Webclips, and customise the icons on the phone's main screen. Some of those features are coming for the iPod Touch, too.

Watch the video below for the full update.