This might interest you. If you estimate #'s in the blue-shaded categories based on history, it says there are about a million more ballots to be counted, in addition to the 577K that they identify.
http://www.ss.ca.gov/elections/gg2006_unproc_ballot_status.pdf
Yikes... they changed the report at that link. Please disregard.
I'll see if I can find the report I saw last night.
Link doesn't load.