OK, we finally we able to get a new release on iTunes App Store. Version 1.9.1 went live today and includes the following enhancements.
1. Improved management of large libraries
2. Cleaner display of cover images
3. Improved text selection on iOS6 devices
4. “Back” button for easier navigation back from footnotes and other internal links
5. Fixed a bug that could cause the app to hang on jailbroken devices