Four days ahead of schedule, too!
At the moment it’s only available at Amazon.com and Smashwords. There’s quite an approval process to get books up on Barnes & Noble and iTunes. It can take a couple of weeks, but I’ll keep checking and let you know as soon as I see it.
I do want to say that you can get a copy for most e-readers at Smashwords though. I’m just not sure how to get the files to the e-readers after they’re downloaded.