A couple of short stories appearing in new anthologies are:

"The Ape Box Affair", JPB's first published story, which is in the anthology The Apes of Wrath. The story also appears in the new illustration collection Steam Punk: The Beginning.

A new short story entitled "Smithfield" is in Queen Victoria's Book of Spells: An Anthology of Gaslamp Fantasy, coming out in March 2013 in paperback, hardcover, and kindle e-book, and in Nook format at B&N.

Could be an error that he was listed on Amazon as one of the contributors - he isn't listed on the table of contents:
http://www.prime-books.com/shop/print-books/time-travel-recent-trips-edited-b...

CONTENTS (Alphabetically by author):
“The Time Travel Club,” Charlie Jane Anders
“Mating Habits of the Late Cretaceous,” Dale Bailey
“The Carpet Beds of Sutro Park,” Kage Baker
“The Ile of Dogges,” Elizabeth Bear & Sarah Monette
“The Ghosts of Christmas,” Paul Cornell
“Thought Experiment,” Eileen Gunn
“First Flight,” Mary Robinette Kowal
“Blue Ink,” Yoon Ha Lee
“The Man Who Ended History: A Documentary,” Ken Liu
“The Lost Canal,” Michael Moorcock
“The Mists of Time,” Tom Purdom
“September at Wall and Broad,” Kristine Kathryn Rusch
“Two Shots from Fly’s Photo Gallery,” John Shirley
“With Fate Conspire,” Vandana Singh
“Twember,” Steve Rasnic Tem
“Bespoke,” Genevieve Valentine
“The King of Where-I-Go,” Howard Waldrop
“Number 73 Glad Avenue,” by Suzanne J. Willis