http://rpg.drivethrustuff.com/product/128281/Inverse-World–A-Dungeon-World-Supplement Inverse World is finally for sale! Currently only in PDF format, we’ll be getting the physical copy up for sale when we can. In the meantime, anyone purchasing this copy will get a discount when the physical book is out.
It is also available in a product bundle with Dungeon World: Mounted Combat: http://rpg.drivethrustuff.com/product/128282/Dungeon-World-Mounts-and-Vehicles-BUNDLE
http://rpg.drivethrustuff.com/product/128281/Inverse-World–A-Dungeon-World-Supplement
Shut up and take my money!
Hmmm, I never got the mail with the PDF. Can I do something to get it?