A little birdie told me about a couple of additional polls for North Carolina, from Public Policy Polling and Civitas.
The PPP poll shows both Obama and Clinton trailing McCain by 5. The Civitas poll shows Obama trailing McCain by 10 points, and Clinton trailing by 12.
The net result is to move Obama's Win Percentage in North Carolina slightly downward, but the state could be reasonably competitive.
Also, note that going forward, polls conducted within the past 10 days will now be highlighted in yellow in our detailed data table. This is not necessarily the same date that the poll is added to the website; the "date" column should reflect the median date of interviewing for the actual survey.