I'm not saying they're going to kill off the MacBook line, I'm saying that the white polycarb versions will most likely go in favour of the unibody enclosure. How they will bring down the price of a unibody macbook I have no idea though. Maybe give it a weaker GPU from the present 9400M?
Btw you can still get unibody macbooks dirt cheap off their refurb store. Mine pictured above is just a couple of months old, and I got a higher spec than advertised. I don't think even Apple know what the thing is...
Why did they stop doing those? I see them appear on the refurb store every now and again and they look awesome.