Apple has updated their iBooks app for both the iPad and iPhone, and the latest version comes with a range of bug fixes. stability improvements and performance enhancements.
The latest version of iBooks is 1.2.1 and you can now organize your books and PDFs into personal collections, plus print out PDFs and notes you have written in books using Apple’s AirPrint.
The latest version now fits more words per page by automatically hyphenating text, this is only available on iOS 4.2 or above.
via TUAW