Attached are some exit polls from CNN:
These polls span all sorts of demographics: income levels, religious involvement, age, race etc. Nothing really out of the ordinary here. The one thing that is peculiar to me, as it was on election night, was that people who would identify themselves as conservative would vote for Obama and vice versa with liberals for Romney. Interesting question to ask but an important one as to gain insight that labeling people one way or another does not necessarily box them in to the party ties.