Looks good. But why is the Kindle edition so expensive? With my own books, if the retail paperback price is, say, £15 then I set the Kindle price at about £7. It brings me approximately the same royalty and provides the buyer (who, after all, is not getting a nice physical book to keep on his bookshelf) with a decent discount. I don't do this out of sheer altruism - I find that well-priced Kindle (and iBook) editions sell far more copies if they are just under half the price of the printed edition and, consequently, bring me far more income.
Well that is a long history that you can read in a short ebook called "the battle of $9.99". Basically, when the publishers signed their original contract with Amazon, they were more worried about a good DRM than with the rights they where giving Amazon. Amazon started to sell ebooks with a top price of $9.99, usually that mean that with new titles they were loosing money... They had to pay more to the publisher, but they got their money back from selling kindles and not so new books, the idea for amazon was to make more attractive to buy ebooks instead of physical books.
Publishers were horrified, they were quite worried people get used to pay just $9.99 dollars for just-published books, instead of the $20-$30 dollars, but they couldn't do anything, until apple decided to release their iBook store together with the iPad. Until that the kindle was the king of ebooks... Apple signed an agreement with the publishers saying they let the publisher select the price of the ebook, and apple keeps just about 30% (like the apps). Publishers started only to release new books to iBook store, and amazon was forced to change their agreement with the publishers.
Now publishers select the price at all ebook stores, amazon and apple get an percentage back for each sell, the rest goes directly to the publisher, and the publisher has this mentality that new books have to have a high price, physical and electronic ones.