by Styles. You can not even look at the internal statistics of providers, it is enough to simply see what the mobile sector has as a priority in general. In the first place everywhere games, videos, social networks and music. This is in demand, and literature, even the simplest stories, are not needed by most of the narrators.
So where does literature come from in statistics? I pumped a package once a month, reading through the reader on the road. Even without connection to the network. It is also more comfortable.