In India's news magazine Express Computer you can find an interesting overview
of how electronic paper could become a usable digital alternative to real paper in the long run.
The author Sushma Naik argues that "electronic paper has a better chance of succeeding [than e-books] as it mimics the conventional medium of paper but with a significant advantage." The advantage of e-paper over paper is that it can be re-used thousands of times. Imagine this scenario:
The use of electronic ink and two-way wireless communication could lead to the creation of electronic books that renew themselves with new selections when readers are finished with the current book or newspaper; indeed, newspapers might be able to update themselves with the latest news while being read.