Well, sort of. Amazon is still being a little screwy; the Kindle version isn’t showing up on searches or my author page, though it was there last night. But, you can now order A Silver Cross and a Winchester, even though the system is being a little jankety at the moment.
It is on Smashwords, and is pending review for the Premium catalog. Once it clears that, it’ll be on Nook and Apple in a few weeks.