This weekend, Nate Hoffelder (@thDigitalReader) of The Digital Reader posted “iBooks 3.0 Coming Next Week – Adds More Support for Epub3” tracking clues that the Apple press event on October 23 will not only include an announcement of the iPad Mini but also the release of iBooks 3.0.
Update Required: This book contains enhanced content or formatting that requires the latest version of iBooks.
The second reads:
Requirements: This book requires iBooks 3.0 or later and iOS 5.0 or later. Books can only be viewed using iBooks on an iPad, iPhone (3G or later) or iPod touch (2nd generation or later).
As Hoffelder notes in his post, the jump to iBooks 3.0 likely means this is a major update to the reader. Could Apple be the first retailer to support the full EPUB 3 spec? Will EPUB 3 support plus the lower price iPad Mini give Apple a clear advantage in capturing the eTextbook market? We will have an answer on Tuesday.