"Lets make all the entire interface monochrome!"
Good Lord. If ever there was an interface design move that proved beyond any shadow of a doubt that the /entire/ team responsible don't have a single clue about interface design to share between them, this is it.
Corel did the same with the latest version of their Photoshop competitor, Paint Shop Pro. Fortunately they listened to user uproar and hastily patched colored toolbar icons back in. One would imagine that MS will also reverse their design choice in response to the inevitable furore about this laughable ineptitude.
The damage, in some sense, is done though. Honestly, what confidence can one have in a team that would make such a mind-bogglingly naive mistake?