This is an interesting article about Apple/eTextbook dynamics and what it means for primary and secondary educational markers.
...
University professors, along with other experts and stakeholders in the college textbook market, are even more skeptical. Kathleen Fitzpatrick, Pomona College professor and director of scholarly communication for the Modern Language Association, was troubled by the
limited view of interactivity modeled in the new iBooks — interaction between a student and a screen, not students with one another — as well as the limitation of these new textbooks to only Apple’s platform and format.
...