iBooks 1.2 has just been released by Apple, and with it comes a bunch of new features. You get support for full illustrations, AirPrint functionality for printing PDFs and notes in books, and more text fits on the page in iOS 4.2 and higher with auto-hyphenation. iBooks 1.2 also brings a new feature called Collections. These allow you to group your books similarly to how you can group apps into folders.

You can download iBooks 1.2 now for the iPhone, iPod touch, and iPad.