Are they going with opensource textbooks ...
Maybe not a lot of them at the moment, but a textbook only needs to be written once, 'published' for free and it can be used by everyone for ever afterwards. OK: not quite so simple since they will need to be updated for changing curriculum needs (especially things that change like the sciences) and will need to be translated into different languages. But an e-textbook done properly & you can do so many things that paper cannot: links to videos, links to stuff on the net, good searching, student annotation/highlights & linking between topics.
Writing good textbooks takes effort, but a start would be copies from the net of individual articles explaining single topics -- bitty and inconsistent styles but a start. The traditional textbook vendors are going to fight back, it will get dirty but, in time, they will lose.