The X220 isn't remotely as thin as the Macbook Air: http://www.engadget.com/photos/lenovo-thinkpad-x220-review/#3982218 http://www.engadget.com/photos/lenovo-t

The X220 isn't remotely as thin as the Macbook Air: http://www.engadget.com/photos/lenovo-thinkpad-x220-review/#3982218 http://www.engadget.com/photos/lenovo-thinkpad-x220-review/#... versus http://www.engadget.com/photos/macbook-air-review/#4317649 http://www.engadget.com/photos/macbook-air-review/#4317649