Quote Originally Posted by Shintai View Post
i5 is a mainstream quad. Plus C2Q. And who says you cant upgrade your i5 quad? Its just not gonna be with westmere.
This is wrong. You assume that the list of Westmere parts on that slide is exhaustive. It isn't. Intel themselves said there will be additional Westmere parts coming in 2010, and Anandtech (among others) said one of those will be a QC i5-equivalent part.

With 45nm i5 yet to launch, even, Intel has every reason not to explicitly talk about its successor just yet, lest it encourage would-be buyers to wait for the Westmere version.