It's pretty amazing how any people and stories are taking credit for coming up with this method. This magazine came up with it. That guy from Microsoft came up with it, etc.

The first reference I saw for it was in the spring over on Wine.woot.com (May)

The Modernist Cuisine cookbook (yes, the $625 one) suggests that the most effective way to decant wine is to use a blender. Pour the wine into the blender, turn it on high for 30-60 seconds, wait for the foam to disappear, and serve.

Though I will say many of the people who have commented on it on the various boards have said it worked.

Just like pouring between bottles, taking out a glass and shaking it up, and all the other methods to get the wine in contact with more air.