why should iMacs use new desktop Quad-Cores?

[TrapOx]

The ONLY way more games/programs are going to support hardware features is if more and more machines have them.

Remember when Apple was doing dual CPU G4's with OS9 back when only photoshop had a plugin that would support it? The other CPU was a waste for 99% of the time. Now with OSX, those machines are much more useful and valuable because everything uses both cores.

 

[Muncher]

No, the Q9000 has a TDP of 45W and costs only $348, cheaper than the 65W Q9550S, albeit slower.

I guess 45W isn't that bad. Only problem is, the imacs run their fans at minimal speeds, which means lots of heat.