The e-book version of The Prince of Prophecy Vol. I: Destined should be launching pretty soon. I don’t have an exact date when the e-book will be released, but it will be available before the book’s “official” release. The e-book will most likely not have the illustrations that will be featured in the paperback and hardcover versions.
The above picture is a screen capture of the first page of the book (I love that font).