I took the numbers off the Presidential 3 Poll Aggregate for each state in the polling section and compared the margin of victory in the actual results to the margin predicted in the polling section and then mapped it out.
The polls did fairly good. Most of the off states were safe ones that were too sparsely polled to be very accurate anyway. Overall, there were 31 states that were only 3 points off or better and 9 states that were dead on.
The most Obama's best poll over performances came in Vermont and Idaho where he did 12 points better than the polling spread. McCain's best was Alaska where he did 13 points better.
Overall, there was no pattern found on this map though there were some neighboring states that posted similar results. Notably there were two strings off connected "dead on" states.