The Sixth Discipline is now free in the Diesel bookstore, too! That puts them in third place in the price-matching race, behind iBooks and Nook (only one day later than Nook). No change yet on Kobo, Sony or Blio. Blio is so new, I don't know if they will price match if the book is free on Smashwords. Sony will, but they seem to take a while to make changes. But considering I made the book free on Smashwords on June 11, I think this is a vast improvement over what response time was last year. I don't know if it was Smashwords or the vendors who made the changes, but it is definitely faster now.