Apparently this is some makeup test which has allowed the world to see Heath Ledger as he will look when he steps into Jack Nicholson's old shoes to play the Joker in the new Batman film.
I am usually quite a fan of ole Heath, but not too sure about this look - he doesn't have Jack's eyebrows and looks stoned rather than mad. Actually he looks like an Aussie stoner who has been beaten to death for being gay and then dredged from the bottom of a creek. Sexy.
Still, I suppose you win some you lose some, Christian Bale is better looking than Michael Keaton, so maybe the fit/ming ratio (naturally what I judge film quality on, rather than narrative, plot and the like) will be the same.