The Defective by Design anti-DRM campaign has targeted eBook readers and books from Amazon and Sony:
When you purchase a DRM ebook, it is locked to a single device. When the device breaks or becomes outdated, you can no longer read your ebook. You buy a lock, but you don't own the key! If you try to pick the DRM-lock on an ebook so you can read your book on another device, you break US Federal Law (The Digital Millenium Copyright Act).
DRM ebooks are bad for authors and publishers. The owners of DRM technology get to decide which books, newspapers, and magazines can be put into their DRM formats. The DRM technology owners can deny whomever and whatever they wish from using their format. DRM allows for digital censorship.
So their answer seems to be enable piracy and reduce the revenue of publishers. It's a point of view, to be sure, but not one with which I agree.