Quite a few of us probably DO have an active NDA with Apple (e.g. from being a Registered Apple Developer). Though IANAL ,from my reading of the terms viewing the materials shouldn't constitute a breach of the NDA either.
Right. And unless the materials were specifically enumerated, even then, it'd be hard to argue that your NDA for software development would apply to "a service manual I obtained from someone who didn't have the right to distribute".