Here is the link to the Amazon e-book version of Book II of the Chronopticus Chronicles...Ionotatron.
And here is the paperback version if you're interested.
You can also sign up here to win a paperback copy of Fractal Standard Time AND Ionotatron while there is still time. The contest ends tomorrow.
On the horizon: Chronopticus Rising (Book III of the Chronopticus Chronicles), Race the Sky (a stormchasing novel), and a new science fiction short story collection that focuses on a single character.