I think nVidia are getting squeezed quite badly at the moment, with the CEOs bold statement that we would see an NV30 by fall and the TSMC woes, not to mention the investigate with extreme prejudice SEC hoohar.
I would guess at this moment in time they are concentrating on getting the NV18\NV28\NV30 line ready and maybe they have put the nForce2 on the back burner until such time as they are stable again.
Folding for Beyond3D
"A lie gets halfway around the world before the truth has a chance to get its pants on."
Sir Winston Churchill
"Halflife2 got halfway around the world before Gabe had a chance to get his pants on."