Kobo has totally revamped the interface, and the new design allows users to easily go from one part of the app to another. This app offers an updated reading menu and page layout, and it will also now let you rate the ebooks in your library.
And as you can see from the image above, the app now supports a 2 column mode when reading an ebook in landscape mode. This is a feature that has been available for the Kobo iPad for quite some time now, and it was also recently added to the Kindle Android app. This will finally make the Kobo app useful to read in a mode other that portrait.
You might have to be a reading aesthete to care, but I've never liked reading a wide line of text. I've found that trying to keep my place from one line to the next grew more difficult as the width increases. There are studies which have also shown that it's not the easiest way to read, either, so clearly I'm not alone in this.