What happened to textbooks?

School textbooks like reading books might one day be considered a thing of the past. Books have slowly progressed from paper to audio and now Kindle. Textbooks will be doing the same since some companies already offer a CD-ROM version as mentioned by David Warwick in his article "Textbooks of the Future". This might be a good thing since the new generation of Digital Natives are accustomed to having everything at the touch of their fingers and quickly. One of the benefits of digital textbooks are the accommodations that can be made for students with learning difficulties-"audio delivery for the auditory learners, translating text for ESL students, and presenting more pictures, graphs, and video for visual learners." On the other hand, students used to read a chapter and answer the questions at the end. With digital textbooks students would be able to copy and paste their answers to these questions. The end result: What does the student learn? and Are digital textbooks really better?