But its not as cheap as it could be if the format was open so other device manufacturerers could compete to build the best low cost hardware for schools. As it stands its mainly just moving the lions share of the income from textbook publishers to apple.
The right thing to do IMO is to focus on a standard open format so there can be increased competition not just on the cost of the books but on the hardware as well. Schools need sustainable barganing power to get the best materials for their students now and in the future. Vendor lock in takes that leverage away.
Such open textbook innovation is already happening without apple. I applaud Apple's effort to innovate on the format to provide richer more teacher customizable content but I can't get behind the lock in even if its somewhat cheaper up front.
1) The point of iPad learning isn't words on paper, it's finding new ways to engage students using platforms that naturally excite them. By claiming what we need is "cheap words on cheap paper", you're essentially ignoring all technology. Even paper was too expensive for schools in the past, and technology will catch up.
2) Ebooks reach MUCH further than paper. Is your biology book available in rural India? With smartphone penetration in the developing world hitting all time highs and expected to expand even more dramatically, this kind of system opens up the possibility for globalizing education and giving any school with this device great tools. Will the iPad/iDevice lead the charge in the developing world? Probably not, but this is opening the doors, defining the systems and getting the entire chain into it, from publishers, to authors, to teachers and students. It's a great first step.
This iPad thing is where technology is going. It's good, no doubt. But as far as disrupting the textbook industry, we seem to be skipping a few steps. Cheap textbooks have to appear before cheap textbooks on electronic devices, and we don't really have that yet.