which proves that having more than 140 chars is overrated anyways.
The article also notes that the essay has been picked up by a publisher (now available on Amazon for $5 - $8), so I presume this copy is not authorized.
It's already online, the article links to a PDF scan.
And there are 140 original copies, but the article notes Farrar, Strauss and Giroux reached a deal with the authors to publish it.