Millar lite: This morning at his message board, Mark Millar confirmed his planned project with Ashley Wood, Run, has been canceled (link via Newsarama):

"Run has been cancelled because there's no art. This isn't really Ashley's fault because drawing a comic for no money upfront (the Image deal) is a big commitment and it's understandable if he has to do paying work instead. Nobody's been able to get hold of him for quite a while on this subject, but we're hoping to resolve the matter soon. As this is the first in a series of shorts, everything else has been held up until we figure out what to do about this."

He also explained the delays on his other projects, blaming Dark Horse and Avatar, respectively, for the lateness of Chosen and The Unfunnies. Things were a bit more vague about Wanted.