|"Open Source" DRM ... Huh?|
And why you ask?
For "open source" DRM.
Huh? you say. "Open source" DRM? But ... what's that?
Well that's what Panzer and I said too. So, we went around reading various posts until we found one we could understand by Cory Doctorow at Boing Boing blog.
To get it explained to you, tootle over to Indie Booksellers Sue Amazon.