Looks like Only Superhuman is starting to show up online. A book database called Risingshadow.net has posted the cover blurb for the novel (though it may be tweaked a bit before publication):
In the future, genetically engineered superhumans, inspired by classic Earth comic book heroes, fight to keep the peace in the wild and wooly space habitats of the Asteroid Belt
2107 AD: A generation ago, Earth and the cislunar colonies banned genetic and cybernetic modifications. But out in the Asteroid Belt, anything goes. Dozens of flourishing space habitats are spawning exotic new societies and strange new varieties of humans. It’s a volatile situation that threatens the peace and stability of the entire solar system.
Emerald Blair is a Troubleshooter. Inspired by the classic superhero comics of the twentieth century, she’s joined with other mods to try to police the unruly Asteroid Belt. But her loyalties are tested when she finds herself torn between rival factions of superhumans with very different agendas. Emerald wants to put her special abilities to good use, but what do you do when you can’t tell the heroes from the villains?
Only Superhuman is a rollicking hard-sf adventure set in a complex and fascinating future.
And we’re starting to see some pre-order links showing up too!
The Risingshadow site has a page of multiple ordering sites for the novel, most of which don’t have the book yet, but if you’re interested in alternatives to the big vendors, you might want to bookmark that page.
Both the big vendors have the book at a considerable discount, currently marked down to $14.50 from the list price of $24.99, but don’t worry — my royalties are based on the list price, so I still earn the same amount even when you pay less (as long as you buy it new rather than used).
So far only the hardcover edition is available for pre-order, but I’m told there will be an e-book version released the same day as the hardcover.