The change is within the margin of error, especially considering the smaller subsample of men.
I think there are a few sexists, still. Maybe not 5 points worth, but there are a few. I have a non-native-born (but now citizen) coworker who suddenly swung to Obama with the Palin choice..but his culture is very sexist. He says it's her experience, but I don't buy it.
Good point but it makes me think the entire sample is flawed.