Readability has updated their mobile app for the Apple iOS platform.

This update is focused on performance improvements and bug fixes.

Changelog:

- sync your reading list faster thanks to huge performance improvements
- Top Reads and Longform Picks reading lists help you discover new content
- time-to-read display shows you the quick or long-form reading you crave
- double tap while reading to intelligently page up / down
- watch YouTube and Vimeo videos in-app (as well as those embedded in articles)
- as of June 30, 2012, Readability no longer accepts reader fees

As you can see, they have added a couple of features as well.

Readability is one of the many options available to mobile users to mark web pages on their desktops for reading later on their mobile devices. the apps download the marked pages for offline reading and present them in a nicely formatted manner.