I agree with Robert Scroble when he says we should respect Steve Job’s privacy, just as we will with everyone else.
It is unfair to Job to have people publishes email conversation with him, even if his reply is a one-liner. He has the expectation and rights to privacy. It is not yours or mine to waive it unilaterally on his behalf. That is just plain wrong.
For the one-liners, may be he is expecting it to be published, may be he wrote it so that it is published. Whatever the case, what’s wrong with asking him first?