I think these quad machine are made for those PPC people who just have to have bragging rights, now, until the Intel Macs come out, which would have to smoke the quads, else why would Apple go that way.
When we're all Intel fanboys, the people with expensive quads will feel weird having a machine that went obsolete so quickly. Still they're the early adopters who'll probably always have to have the latest and greatest. NOt me, not anymore, not when I add up what I've spent over the years playing that game...
Apple is just milking a small segment of its market, with always too much money to spend.
I doubt if any/much software which truly uses the quad PPC power will ever be written...for such a small, soon to be an always declining percentage of Mac users, as the Intel move takes hold.
I'm bewidered by those people enthusimg over a platform thats almost obsolete...the King is dead...long love the King.