Textbooks in the iPad Age: Will Cool Tech on Campus Beat Renting?

With just over a month to go before Apple's (AAPL) long-awaited iPad device goes on sale, expectations that it will transform publishing and media are sky-high. Some of those hopes will dissipate: The iPad won't "save" publishing (whether books, magazines, or newspapers). But it may finally bust open the door for massive digital textbook adoption in a way that has never been feasible.