I've seen a similar discussion on the answers.microsoft.com forum. At first I quipped something smart about being more careful but, after looking closer to the photos there, I noticed that my logo is very different. Mine looks very light. It's not as bright a white as shown in some of those pictures. Is it possible the material you see coming off is some sort of mask that should have been removed in manufacturing and the real logo is underneath? I'm not suggesting you scrape it away, just wondering how the "voids" compare to the "printed" part.
Is the white coming off or is the logo turning white?