[Shopaholic]

Originally Posted by carld

Quote:
The e-books will be released in October, and will be available only on the Pottermore website, but will be compatible across a range of devices, including Amazon's Kindle

http://www.thebookseller.com/news/co...e-website.html


Quote:
the books downloaded from Pottermore will be compatible with ebook devices, like the Amazon Kindle.

http://www.cbsnews.com/8301-501465_1...83-501465.html


Quote:
Rowling has bypassed established online retailers such as Amazon, though her e-books will be compatible with popular e-readers, including Amazon's Kindle

http://abcnews.go.com/Entertainment/...ry?id=13913091


Quote:
the creators of "Pottermore" say the books will be compatible with popular e-readers including Amazon's Kindle,

http://www.huffingtonpost.com/2011/0..._n_882754.html

Each & every thing you quoted said compatible. Compatible does not mean in Kindle format. It means it will be able to be viewed on a Kindle. I'd say clearly, and yes, this is speculation on my part, that they know something about Kindle and epub that the rest of the world doesn't know yet.