Via KurzweilAI.net — Textbooks!
From the link:
Replacing a Pile of Textbooks With an iPad
August 24, 2010
Source: New York Times — Aug 23, 2010
A new company called Inkling hopes to break the standard textbook model and help textbooks enter the interactive age by letting students share and comment on the texts and interact with fellow students, using an iPad.
Other features include interactive graphics within a book and the ability to search text, change the size of the type, purchase individual chapters of books, highlight text for others to see, and take pop quizzes directly within the app.