Looks like Apple is the one who really caved on the NBC/iTunes thing: we can now welcome our new DRM overlords to the Mac world:
Apple's new MacBook lines include a form of digital copy protection that will prevent protected media, such as DRM-infused iTunes movies, from playing back on devices that aren't compliant with the new priority protection measures.
I've expressed a lot of irritation at MS for crippling Vista this way; at least there, it's possible that some manufacturer somewhere may not ship the hardware end, thus allowing for some kind of escape hatch. On the Apple side? Not so much. Jobs is supposedly all about elegance, but it appears that DRM laden gold is enough to let him slap a crap-coat on things.