The URL structure has changed too, allowing external links to books in specific countries. It used to be that following a link to a book always showed you the book in the local store, now it works more like the Apple store where you can just change the country code in the URL to see prices in different countries.
E.g. I can now supply links to this book in the
NZ store and in the
UK store which makes it easier to post about price discrepancies.