His headline is wrong and his slant is all wrong. The Nook can do Adobe DRMed public library books.
It’s still unknown if the Android Nook app can — there’s no other app right now that might. Amazon is in libraries with DRMed MobiPocket and I wonder if they’ll switch that out for Kindle format? Update: The Nook for Android app cannot sideload classic Adobe DRMed public library ePubs.