Wow that's very good news for Romney. I'm not holding my breathe for the state to become competitive if he's the Republican nominee, but a 10 point loss could at least let Republicans pick up some seats in the state legislature and congress.
The Republicans picked up about every House seat they could pick up in 2010 that they had any chance of winning in 2012 as well. The Republicans can expect to lose net House seats in 2012 because
1. They won a bunch of seats that have leaned D for a long time.
2. Freshman Representatives are more vulnerable after their first term than after any other
3. The winners of 2012 are on the whole far to the right of an electorate typical in a Presidential year
4. The current Congress is extremely unpopular.
A recent poll showed that Americans have on the average an approval rating of 41% for their Representative. Although some Reps are extremely popular in their ultra-safe districts, some are clearly on the other side. People who claim that the President has little chance of being re-elected with an approval rating of 44% eleven months before the election must say the same of a Representative who will be on the same ballot.