Is that jealousy? If it is... it's peculiar. The idea of a human ever feeling cause to be jealous of a robot is... almost unthinkable in its ridiculousness. The Laws don't allow for any robot to take precedence over a human being, at least not ever under normal circumstances.

"He gained them accidentally," Daneel explains. "They are highly unusual to say the least, and perhaps unheard of. It would not be a welcome revelation, had most people learned of it, and he kept them very secret." Daneel hesitates, considering how to attempt explaining why Giskard had chosen to do this. "Spacer worlds have a story, of a robot that once gained telepathy in a similar accidental way. The robot in question was a comparatively primitive one, and began to tell humans lies that they wished to hear to avoid causing harm. Eventually, with so many conflicting stories that it had told to various individuals, it found itself unable to take any action without breaking the First Law, and it went into stasis and deactivated. The story is very old, and I cannot say if it ever truly happened, but Giskard took from it that if there was good he could do with his abilities, both telepathy and the ability to 'tamper,' as he put it, he would have to do so in secrecy. Were his powers well-known he certainly would have been studied and deactivated."

And here Daneel is now, explaining it to a human, to Ned. Perhaps it's a betrayal of a sort, but perhaps Giskard would merely have been amused by it. He had had a sort of... sense of humour, near the end.

"Ned," he says, because he has to know, because that distress is tangible to him, "why are you jealous?"