I've watched polls for 15 years. Polls of "adults" are usually between 3-4 points in favor of the Dems from the real election day outcome; if you narrow it to "registered" voters, it shrinks to 2 points off; and if you go with "likely" voters, you are pretty much accurate.
Ras has Obama up 1. That's pretty close.
At first blush, that would seem good. But the result is unchanged from yesterday, which means McCain polled no better yesterday (Friday) than he did for the day that rolled off the averages (Tuesday). I actually consider that a negative.