Intel's dual core Smithfield two slabs together
 

THE BURNING QUESTION about dual cores is how will Intel implement Smithfield and its spawn. Since it is just two cores on a slab, it could be done in a bunch of ways.
Intel is not going to take the easy way out, put two cores in a package and wire them together, but they are going to come close.

http://www.theinquirer.net/?article=20460