It's updates galore for Apple today. Version 1.1.1 of iBooks is now available, and they have added some notable features. Some of these truly separate their eReader from the competition, such as video and audio playback.
We personally haven't had any major issues with PDFs, aside from a big of a slow load when zooming in and out. Hopefully that's one of the performance issues they fixed. It's already a nice PDF reader as it stands.
The updates for iBooks Version 1.1.1 are as follows:
– Double-tap an image within a book to view it in greater detail.
– Experience books that include audio and video.
– Enjoy substantial performance improvements when reading PDFs.
– Look-up definitions to English words inside books without a specified language.
– Addresses an issue that may have caused some book downloads not to complete .
– Includes many stability and performance issues.