Seriously, you believe that?
😕
Considering *Quad notebooks have been out since 2007, proving it possible to run one in a smaller form factor machine, I think it entirely reasonable to think Apple will drop Quad puppies into an iMac sooner or later.
(*
http://www.notebookreview.com/default.asp?newsID=4096)
Why they haven't already is threefold:
1. They want quiet, cool machines; (outweighs nothing-much bragging rights).
😉
2. As yet, the 'average' consumer (think iMac user) has had no real need for the extra horsepower. This will change soon enough though, (post SL esp), as new/updated software is designed to take advantage of more multiple core machines.
😎
3. It has been cheaper; Apple likes the cash $$$$$$$
🙄