religion going left?

this recent study indicates that there could be a major shift in the politics of the religious, particularly the young. the study found that "40 percent of likely born-again voters planned to vote Democratic this year, compared with 29 percent who planned to vote Republican." of course who knows about the polling methodology, etc. but to me, coming from the bible belt and hyper-conservative cobb county, that is a staggering stat. if those numbers are even somewhat accurate, it would represent a sea change in the political landscape.