I would not buy it, but I am not the target market.
Apple is looking at a very definite target market with this product. But what the industry watchers find interesting is that Intel has created a chip at Apple's request. Other manufacturers did not know about this chip until Apple revealed the product at MacWorld.
Sure, HP and Sony etc will have a new, thinner laptop out as well, but not for another 6 months.
Would design professionals, graphic artists, road warriors want this product? Probably not.
But who needs something light, has great battery life, and needs wireless connectivity and the ability to take notes?