AppAdvice (http://appadvice.com/appnn/2010/03/exclusive-ibooks-prices-revealed/) says the typical price of an ebook for the iPad will be US$9.99. The site notes that this is despite the fact that Apple offers publishers the same deal iPhone developers get: they set their own price and Apple keeps 30%.
The iPad will come with an iBookstore app. will feature books from major and independent publishers. The free iBooks app lets you buy books from the iBookstore. Once you’ve bought a book, it’s displayed on your Bookshelf. Just tap it to start reading.