The issue isn't whether most californians think abortion should be legal. Only the most myopic can't see that clearly Californians have no problem with abortions being legal.
Even within that context, it was hard to imagine that more people than not think that a minor can get an abortion without her parents knowing it.
The fact that it is so close (indeed, that it is losing) is quite damning - abortion isn't on the ballot, parental notification is on the ballot: a fairly uncontroversial conservative value that Californians are rejecting.
Amazing. So this isn't such a bad night for the GOP, huh? :-)