Burger King's Latest Ad: Real or Hoax?

Given the number of people who have forwarded this to me, the ad agency that dreamed up this idea must be happy. But it it for real? I can't find it on the Burger King website, so maybe it comes from The Onion? Anyone know the source?

For Derek Thompson's take on another part of Burger King's ad campaign, check out this post on The Atlantic's Business Channel.

This article available online at:

http://www.theatlantic.com/health/archive/2009/06/burger-kings-latest-ad-real-or-hoax/20185/