From CNet: Princeton and nine other colleges will be offering students digital versions of some textbooks. The good news: a 33% percent savings off the paper version. The catch: restrictions and built-in protection. The book can only be downloaded on a single computer, restricts printing, and expires (becomes inaccessible) after five months.
My guess is that these cash-strapped and computer-literate students will quickly find a way to crack it and convert to to more convenient formats. Then it’s just a matter of loading your favorite file-sharing program. Isn’t it college kids that are the most prolific file sharers?