Well in some private schools in South Africa the new textbook list is replaced with iPads. Schools are going digital, with e-whiteboards and all classes networked and linked. This is according to some teachers who visit my store.
Sure it is a small thing at the moment and of course the whole country isn't ready for a massive roll out of this kind of tech (3rd world where pupils are starving in leaky classrooms, etc) but it is definitely the way of the future.
I am still a physical book kind of person at the moment, but if I ever got hold of a tablet (can't justify the expense at the moment tbh!) I would definitely load that sucker up with digital media. I have already downloaded the entire X-Men comic book collection to my Android phone and read one every now and then.
When you look at it, the pros far outweigh the cons. Storage space, printing materials no longer needed = more trees and less waste / pollution, entire archives of books freely available in digital form (even ones out of print - ever had that problem?), on demand delivery (no more waiting 2-4 weeks for a book delivery to arrive, damaged), portability (take a whole stack of magazines / books on a plane in your pocket). All on one small device.
Yes yes, I know books feel, smell, look and taste better (I eat my books when I am done, I love digesting a good book!) but those are all tangible experiences as the content is exactly the same. For the bibliophiles amongst us, I can understand your perversion but the future of how we read is in sight with tablets / e-readers becoming more and more mainstream.