You can do DRM with opensource, it just takes some thinking and planning on how to do it properly. The question is, will they take the proper route and do it right in an opensource way, or take the easy route of security through obscurity, which in the end is usually not as secure long term.
@wmarone: Don't get me wrong. As a paying customer I'd love to do away with DRM. But knowing the commercial developer side, I also can sympathize with their concerns. That's why I phrased my last post that way.