"Women More Skeptical of Palin Than Men"
I don’t think this is very mysterious. Women and men have, on average, different political opinions with women being generally more left-wing than men are. Since Sarah Palin is very conservative, you’d expect women to be more dubious about her. Given a choice between two candidates with similar views on the issues (i.e., Obama v. Clinton) you see women flocking toward the woman, but given a choice between two tickets with very different views (i.e., Obama-Biden vs. McCain-Palin) women will back the more progressive ticket.