Whenever I read a news like this I definitely know why I will offer all eBooks in my shop without DRM! You'll never read any news like this about a print book or mag or anything.
DRM is NOT customer friendly. It isn't supposed to. It won't be.
And it is definitly not an argument pro eBooks as long as a majority of shops still think electronic texts should be copy-protected. It took the music industry years to learn, but finally they seemed to have gotten the message. Since we can rely on the reaction time of publishing houses, it will also take them some years to finally accept that any file without DRM might be easily copied - but it will generally sell more in the long run.
And I am glad that I am able to convince my authors not to rely too much on DRM. If anyone wants an illegal copy he/she will put the book on the scanner and distribute that copy.
J.K. Rowling doesn't want Harry Potter to be published as eBooks. Still all volumes are out there as illegal copies. A DRM-protected version wouldn't help her protect her rights any more than a free one would.
Sorry, just my ramblings. DRM just hits my nerve ...