Chocolate is in Mole which is one of my alltime favorites. Chocolate, 4 kinds of ground peppers, nuts, tortilla ash, chicken stock... it ends up making a druglike efect on your endorphins when you eat it. Amazing stuff.
For other savory chocolate I did see a competitor on Iron chef drizzle a agreat wine reduction with melted chocolate on fatty tuna once, it looked amazing.
I havent seen the Batali one yet (no cable) but I cant wait.