The iBookstore for the iPad will feature the Gutenberg Project catalog for free, according to the AppAdvice web site (“http://appadvice.com/appnn/2010/03/exclusive-ipad-ibooks-features-gutenberg-project-library/).
The Gutenberg Project (http://www.gutenberg.org/wiki/Main_Page) is a free online digital library supported by volunteers. It already includes over 30,000 free eBooks from the public domain.
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.