A few days ago, I noted that a number of publishers, booksellers, and colleges were marketing DRM-protected textbooks. The debate / commentary continues, including articles on Tom's Hardware site, ZDNet and this summary from CNET.
My own view is that DRMed eBooks are just fine. The problem is the business model(s). The publishers seem to be committing one of management consultant Peter Drucker's (a personal hero) Five Deadly Business Sins, namely, slaughtering tomorrow's opportunities on the alter of yesterday.