Boy, you really love to mock that woman, don't you 2&2?
Anyone thinking that turnout is going to be low in 2012 is simply insane. Not with the dollars that will be in play. Neither side needs to worry about there base showing up either, not with the poison political atmosphere we have currently. That woman may have been a hysterical voter in 2008, but she's still likely a voter in 2012, with a little braiding from the billion dollar ground game, and she is not likely to vote for the GOP.
Voters have been trained by media and both parties to see these elections as war, with the winner walking all over the loser. The left will be plenty stoked to hate the right by November--most polls are showing the enthusiasm gap to have closed drastically from 2010 already, due to the House Pubs and there blundering, and Obama's recent resurgence as an effective, compromise-minded executive.
These polls show the election will be close, and it likely will, but with Obama (and the economy) trending up rather than down, we're likely simply looking a marker along the way to that 50% approval he needs to be comfortable on election night.