[Alvin Harrison in the Edna Barnes Salomon Room. All photos by Spencer Platt.] Ever have one of those days where you're stuck in the middle of Manhattan with nothing to do? You've finished work -- or whatever it was you were up to -- but have a couple of hours to kill before pounding drinks at happy hour? Since it's always best to waste time in stately places, check out the Beaux-Arts Edna Barnes Salomon Room on the Third Floor of the Stephen A. Schwarzman Building. That's one of those New York Public Library places. Don't even think about bringing any of those book things in here -- this bad boy just got wireless yesterday.