I dunno. NH elected a far right house and senate in 2010, a veto proof one at that. I'm still trying to figure out the whole NH being socially moderate thing - I feel like its not really a penalty here as long as you de-stress it. Ayotte is a mega social conservative but she didn't make those issues a focal point of her campaign.
2010 was extremely unusual year - may be even more so in New Hampshire then in many other states: a banner year for ultraconservatives. Very conservative Ayotte almost lost to even more conservative Ovide, Bass almost lost to unelectable very conservative Horn, and legislature now has a record number of "ultras' in decades, if not centuries. In 2012 the pendulum will swing back, the question is - how much? If Obama would retain even half of it's 2008 popularity - i would predict Democratic takeover of legislature. As it is - i think Republicans will retain legislative control in the state, but with much reduced majority...
I think the big question is "how much" will it swing back, like you said. However, if it swings back only slightly - that has some huge implications for the future of NH politics. I am less convinced in a massive shift back to dems - some of the oddball laws that have been passed resonate with this state because it is such an oddball state. It's also one of the most pleasurable states to watch the political process. The voters have a lot of say here and that keeps both parties in check.
