That be good news.
Taking it a step further, suppose that those 4% are not represented but will go for Obama (i.e. the true picture is Obama by 5% in PA). Then consider that VA was 4% more favorable to McCain in 2008 than PA, OH was 6%, FL 9%, NC and IN 10% and the US as a whole was 3% more favorable. You start to get the sense that contrary to the pundits' pronouncements this is indeed a very close election...the current Rasmussen +2 and Gallup 0 results are likely accurate.