If that’s what you’re into, the Kindle version of Radio Shangri-la seems to be available for pre-order. (Doesn’t appear to be available in other digital formats as yet.)
There’s also a special price guarantee on the hard-copy of the book from a certain major online retailer. Not that I’m playing favorites; I don’t care where you buy my book, as long as you do! Reserving a copy from the retailer of your choice before it’s out helps everyone…..