WAPO is already out.. dont know why they did it early, but was out before 12:00pm today..
http://www.washingtonpost.com/wp-srv/politics/polls/2004tracking/track103104.html
WaPo has been releasing early on Sundays so that they get talked about on the talk shows. They did it last Sunday too.
I believe that WAPO/ABC polls on Sat. afternoon. On weekdays they poll in the evening.
So the data for Sat. would have been available early Sunday, so they put it out.