The reason that gas is not plunging as fast as oil is because the cost to refine has risen. Even if when back to 15 dollars a barrel (what it was when gas was under 1 dollar) gas would not fall under 1 dollar.
Also, I called this back in June... when oil was closing in on 150 and gas was 4.30 a gallon. It was a bubble that was popped by the economic crisis.
End of 2009 Predictions (Set, January 1st 2009)
Wii- 72 million 3rd Year Peak, better slate of releases
360- 37 million Should trend down slightly after 3rd year peak
PS3- 29 million Sales should pick up next year, 3rd year peak and price cut