Trying to change a major publisher’s mind on DRM is a lost cause. That’s why even though I disagree with IDPF’s DRM efforts, I can only hope that their work will result in the wholesale adoption of a completely ineffective and useless DRM technique and bring us into a de facto DRM-free world.
(You could argue DRM isn’t a problem for existing consumers. That’s true, but only because we just buy from Amazon.
You think I’m joking? One of the biggest issue publishers face with ebook production is the somewhat adversarial attitude ereader and app vendors have taken towards publisher stylesheets.
Publisher styles are largely overridden by default at Kobo, B&N, and in Aldiko. Even iBooks requires you to slot in a set of proprietary meta tags before it respects your font and image decisions.
Problems with vendor stylesheet overrides:
They are inconsistent from platform to platform, vendor to vendor, and device to device.