Kobo has released a new version of reading app for Android, that has a brand new rendering engine for eBooks. This will allow you to have faster page turns and more options to enjoy your ePub and ePub 3 files.
Better display support for more accurate rendering in EPUB/EPUB3 files.
Support for EPUBs with embedded audio.
Improved loading speed for many books.
Immersive full-screen mode on supported Android 4.4 (KitKat) devices.
Stability improvements for Fixed Layout EPUBs
I dig the fact large screen tablet owners can finally read in full screen mode. Kobo does not have a ton of interactive books yet, that can really take advantage of multimedia aspects such as audio and video. They are setting the stage for a new wave of content hopefully available soon. Download the new and improved Kobo Books for Android, from the Good e-Reader App Store.