E-books and the library

As the discussion around the concept of "e-books" develops and as e-books and e-book readers continue to evolve, articles like this one from CNET are beginning to appear.  Here at HPL, we have been thinking about and testing e-book readers quite a bit in the past 2 months.  The CNET article points out that one of the many things a person purchasing an e-reader must consider - will I want to borrow e-books from a library?  Not all readers allow this, Amazon's Kindle being the most notable instance.   Many others do, such as the Sony devices and the B&N Nook.