Apple launched the MacBookAir to great fanfare in some circles with much celebration about the form factor and design of the device. The Steve-note certainly highlighted the sleekness of this device and to give weight to the argument, compared it to a Sony Vaio. Other sites have a more detailed comparison here. The real value I think is in the 'Touch' interface developed first for the iPhone and the iPod touch. The MBA has touch on the trackpad so you can resize photos, scroll, swipe, rotate, zoom and other motions to interface with the screen. But wouldn't it be great if you had a screen you could do this on directly? So make the screen touch sensitive (like the iPhone)