Since Apple uses BSD licensed code for their userspace and doesn't (to my knowledge) use any GPL code, I suspect that it doesn't affect them at all.
Apple uses a lot of GPL in OS X, even more in OS X Server, but I believe it's all programs and services running on top of the BSD. I don't think any of it is engineered so that it would kick in the DRM provision. But my point was that if this does move people to BSD, how does it affect Apple, and how does Apple affect the decision?