Although Apple claims that the MacBook Air is the world’s thinnest notebook they actually mean that they make the world’s thinnest notebook that is still in production.
There are actually three notebooks that were thinner (that’s all that I know of at least), the Sharp Actius MM10 Muramasa notebook measured 0.54 inches thick. This notebook was released in 2003 and had a 1GHz Crusoe processor from Transmeta, 256MB of memory, a 15GB hard drive, Wifi, 2.5 hours of battery life, and cost $1,499. Sharp also released the Mebius notebook that measured 0.65 inches thick.
The third notebook was the Pedion which was developed by Mitsubishi and Hewlett-Packard in 1997. The notebook was 0.7244 inches thick and cost $6,000. The notebook had 64MB of memory and a 1GB hard drive.
So there you go Apple, you may have one heck of a notebook but it isn’t the world’s thinnest ever.
Oh, by the way, that cool little SuperDrive that you can get with the MacBook Air for $99, supposedly only works with the MacBook Air which, in my opinion, is a pretty dumb move. But, I don’t really know why anyone other than customers purchasing the MacBook Air would want to spend $50 more than they really need to for a DVD burner.