My PCs appear to have low-light vision, regardless of race, and the ability to see ghosted PCs (from a long, long distance) without True Sight, or See Invisibility. I've heard a few other people have the same issue.
Also, I'm not sure if ghosted PCs are still getting the Hide / Move Silently bonus that they used to? I don't know if I imagined it, but I was sure they got like a 40 point buff to it. I didn't get that buff the last few times I was ghosted.