According to a post from AppAdvice.com, the entire Project Gutenberg library will be directly available from within Apple’s upcoming iBooks application and store for electronic books.

The library contains over 30,000 titles from the public domain free of charge, and has become increasingly popular. Many classic titles are available in a variety of formats, including the open ePub format, which Apple has embraced for iBooks.

iBooks is set to debut alongside the iPad on 03/April/2010. Apple has previously announced iBooks accessibility with VoiceOver.

At this time, iBooks is only known to be available for the iPad, though many have speculated that it may eventually make its way to the iPhone and iPod touch devices, which also run the iPhone OS.