I'm hard at work for the next few days getting the Kindle/Nook/Apple versions of Clarity ready, and they should launch at the same time as the paperback version. The hardcover should follow in another month or so - different vendor, different format, so it will take some time to get it ramped up.
In other, related, news, I'm also working on Epsilon Book 2. Hope to have it out for release sometime early in 2014. Stay tuned for news and tidbits about that one as well!
R. James Stevens