The MacBook Air introduced the unibody chassis design and multitouch gestures last year, and, thus, it doesn't receive much of an upgrade this time around.
Editors' note: As of June 2009, the product discussed here has been replaced by these updated models.
The new MacBook Air looks the same as the original Air, but Apple squeezes a mini DisplayPort connection under the flap that hides the lone USB port and headphone jack.
