Today is release day! Series premiere!
You can order it in pdf, epub, or mobi straight from the publisher, or from Amazon or Barnes & Noble. It's possible there will be other online bookstores added later, but those are the ones I've found so far. So put it on that new Nook you got for cheap or read it on your phone while you wait in line for some crazy deal. But no need to brawl to get this $.99 price.