i think thats the whole reason as to why they are going to lock nehalem. From what i've heard/read about this, you can buy a 80 dollar chip, and get 100% + OC out of it, and have it running at a much higher speed. So basically, Intel screwed themselves over because they aren't selling as many high end chips to the 'enthusiast crowd' because there's no need to spend 250 on a chip when you can spend like 120 and then oc the **** out of it and have it run at the same speeds (like benchmark speeds, not clock speeds) as the more expensive one.
And that does spell disaster for Intel's place in holding the enthusiast crowd, because if you look at the 'oc chips' ie the Extreme Editions, those are usually around twice as much as their locked multi counterparts. So intel is forcing people who want to OC to buy horrendously overpriced chips, which will drive the enthusiast crowd back to AMD, provided AMD can come out with something that the enthusiast crowd will like.