There's no excuse for violence against MacBooks, but the SmackBook virtual desktop changer sure made it tempting.
Now you can get all the benefits and incur none of the bad karma. With a wave of your hand, you can get precisely the same effect one achieves with SmackBook.
The new implementation appears to rely on the ambient light sensor located under the left speaker grille. No software releases have been announced, though it looks like the user in the video runs a command from the Terminal prior to the demonstration. The author's page indicates a software release is imminent.
