Lenovo has taken a page straight from Apple's playbook. The parody of the Macbook Air commercial promoting the ThinkPad X300 ultramobile PC has an effect similar to Apple's series of ads with John Hodgman and Justin Long that put down Windows.
It's not what you would expect from the Chinese company that acquired IBM's PC business, but it works. The ad is getting passed around like candy, and it is really funny and points out the weakness of the Macbook Air. (It lacks some ports and an optical drive.) Expect the Macbook Air crowd to strike back with a parody of its own.