In addition, the report notes that Apple requires all iBooks Textbooks to be exclusive to the iBookstore. An iBooks Author FAQ notes that authors may distribute their books free of charge through their own websites, but that book sales must go through the iBookstore. iBooks Textbooks also may not be offered under any subscription-based access programs.
Well, it turns out that Cupertino is giving authors the ability to set their own prices as long as they remain $14.99 or under. In exchange, Apple takes a 30 percent cut, and requires authors take an oath of fealty to Tim Cook -- ok, not really, but any e-textbook author that wants access to the iPad-toting masses must make his or her work an exclusive to iBooks 2.Authors can use Apple's free new iBooks Author app for Mac to create their iBooks Textbooks for distribution through the iBookstore.
Update: There seem to be some questions about the sourcing and completeness of Engadget's claims. Apple states in its iBooks Author license that all works created through the software to be offered for sale can only be sold through Apple. But it appears that authors may be able to use other tools to offer those same titles on other platforms on marketplaces as long as they do not use iBooks Author to create the files. As TechCrunch notes, the output of iBooks Author is based on ePub but not technically in the ePub format, so those files likely would not be compatible with platforms other than iBooks anyway.
Books are not technically in the EPUB format, but they borrow from it (likely EPUB 3). Certain interactive elements of the books require the files to be done in the slightly different iBooks format, Apple says.In light of the uncertainty about the situation, we have moved this post to the iOS Blog.