Looks like some flights did get out -- just spoke to a friend who is on AF023 JFK-CDG. They did depart JFK relatively on time, but with the electricity out they only fueled it to get to BOS where it's now sitting while they accurately fuel it up for the hop across the pond.
Also just saw BR032 depart Seattle for it's normal continuation to EWR, albeit a couple hours late, so thing are slowly getting back on track.