This is a great article about the evolution of reading. Given the influx of iPads and eReaders into classrooms, the concept of "books" is certainly changing.
This is an incredible app for students with special needs. It connects to the Bookshare.org database and does require a membership ID. However, students and organizations who qualify have access to a tremendous resource.
"From within Read2Go, you can browse, search, download, and read books directly from Bookshare using your Bookshare membership, as well as read DAISY books from other sources. The app gives you full control over visual choices for font size and color, background and highlighting color, and text-to-speech preferences. Read2Go features word-by-word highlighting for multi-modal reading."