Quad core will replace dual core as the standard.
Absolutely. I'm surprised there's
any doubt on this point, iMac or otherwise.
It will show up in iMacs in '09, especially if Apple want to compete with PC manufacturers such as DELL/HP etc. Dell already has a Core i7 quad core PC out, I believe it's called the Studio XPS for $1000
In fact, Intel is de-emphasizing dual-core on the high-end, and emphasizing quad-core there. It's only a matter of time before quad-core comes to the iMac, no matter how much Apple wants to keep quad-core GHz's the same or higher than dual-core GHz's.
Apple has the option of switching to a desktop CPU with the next Nvidia chipset upgrade, this chipset was aimed at micro desktops, and Apple asked for a mobile version.
Interesting. That fits in with the 65 W quad-core rumor
and the MWSF iMac update rumor.
65 W does seem quite high for the iMac, so maybe if they go to micro desktop NVIDIA chipsets, the 20" could have desktop dual-cores and the 24" could have desktop 65 W quad-cores. Perfect for MWSF!