There are some interesting developments happening in the e-book as a text-book market. New Zealand lags behind in the availability of readers and e-texts. Already there are USA book-shops that provide downloadable e-texts to students licensed for a year. Now we start to see companies working directly with academic staff to provide access to e-texts through Learning Management Systems such as Moodle. Not a lot of library involvement here: see http://bit.ly/c5wwP2
We need to be aware of these trends because I suspect that when they arrive in this part of the world, they will do so with a rush. However, it is interesting to note that in the USA there is still considerable faculty resistance to e-books.

Peter