Spider Bones, the 13th! installment in the Temperance Brennan series, is being released in hardcover in just a few weeks (August 24th).
I'm a big fan of the audiobook versions narrated by Barbara Rosenblat (produced by Recorded books, not the awful ones produced by Simon and Schuster). Audible only carries the icky S&S versions for the most part, though. And while I love Recorded Books, their audiobooks are (how do I put this politely?) outrageously freaking expensive. The CD version is available for preorder on their site for $92.75.
The Kindle price is currently set at $12.99. Too expensive for me right now. So I'll likely be picking this book up in hardcover or waiting until I can find a used copy of the audio.
You can preorder the hardcover at Barnes and Noble, Amazon