How bout at IAD? Was reading some reviews of the "new" AF lounge at Dulles from 2010 that specifically mentioned boarding directly from the lounge. But more recent reviews haven't stated such and one said something like, "it was nice because the lounge was so close to the gate.". Having never done the direct boarding, I would like to try.
Jaminbaker- I am envious, one of my big regrets in life is that when US had a Concorde award for a very (very) short period that I didn't take advantage of it....though I must say the memories of Australia and flying there in J instead are ones I wouldn't want to be doing without either!