Along with iTunes 9.2.1, Apple released iBooks 1.1.1 for the iPhone, iPad and iPod touch late on Monday. The update for Apple’s ebook reader app added support for ebooks that include audio and video content.
Version 1.1.1 also added the ability to double-tap images to zoom in, improved performance when reading PDF documents, added the ability to look up English word definitions in books that don’t include a specified language, and improved overall stability and performance.
iBooks 1.1.1 is free and is available at Apple’s iTunes-based App Store.