Which State Do I Pay State Income Tax To?

I lived in WA for the first half of 2009 (though 6/30) and then completely moved to CA. I worked with a different employer in each state. I just received my W2 from my WA employer but it has taxes being paid to CA (once again, I live in CA now but did not earn those wages here). Is this correct? Could someone provide me with an explanation/link to explanation for this. Thanks!

the state u live in..........

your tax home is where you work and since you say you have completely moved to CAlif. this would indicate this is more or less permanent
you will file Calif. on all your income
if Wash employer was withholding Calif taxes you apparently indicated on your W-4 that that was your tax state