It seems the Church is active on many fronts. Besides the ePub books, the Church has updated it's apps for mobile media. In New Updates for Gospel Library Apps in Church News & Events:
In an effort to provide additional content to multiple mobile platforms, updates of the Gospel Library app have been released for Android, iOS, and Windows 7 operating systems at mobile.LDS.org.The offerings seems especially broad for the Android operating system:
For the Android, the entire English library of Church publications is now available. While the previous app offered only the scriptures, general conference, and a few other key publications,There are apps for many other operating systems and many other apps as well. It is especially nice to apps aimed at youth. Visit the Church's Mobile Applications page for links and information.