Well, this was indeed a Surprise, and a good one.
An email from golden-throated Peter Ganim tells me that the release sked of the Pow! audiobook version has been pushed up and is actually now available at Audible.com. See below:
Peter did a superb job of capturing the feel of the book (and does a mean impression of Russian chess master Garry Kasparov). You can get a free sample of his work--and mine!--by clicking here.
Better still, you can actually buy and download it while there.
Okay, so who wants the movie rights?