As Green notes about evangelical preferences, they look a good bit like those of other religiously identifiable Republicans, with one exception--more of them remain undecided. (I wonder if, after the news this week about Giuliani’s wobbliness on abortion, even more will migrate into that camp.)
On the Democratic side, this table is interesting: Obama seems to have a bit of a Catholic problem, compared to the other contenders. I’d bet that you could attribute a huge portion of HRC’s overall lead to her 33-12 margin over Obama among non-Hispanic Catholic Democrats. (I will note that Obama is the second choice of a significant percentage of Catholic Democrats, but that wouldn’t help him much unless many of them are anybody but HRC voters.)
The Pew poll itself is quite interesting, especially for the comparisons it draws between 2007 and 1995. I wouldn’t say there’s much good news for Democrats, but there’s lots of bad news for Republicans.