The well-regarded FiveThirtyEight.com Super Tracker projects Obama up by 4.9% on election day.
The Daily Kos tracking poll, which aggregates results from several polls, show a slight bounce for Obama and drop for McCain after three days of McCain gains, this before the Powell endorsement. That outlier Zogby poll of a few days ago has reversed and now has Obama up 6%, not 2.8%.