it took apple this much time just to feature this. it felt like apple gave it it's last breath of life before ending it. in terms of processer, i don't think they can go any further than this. they had a lot of trouble with speeding up the processer and other stuff so they try to dramatically change something else: monitor resolution and battery life. IMHO, i would rather have this update than a 0.3 ghz update, because it won't make me any more productive than a notebook that is not updated. battery life will keep me on the computer a longer time, so that helps productivity, and screen resolution, which will enable me to view and do more work done.
apple will try to make up for it's lack of speed increases by using intel processers, which will be what i think apple will do.
the only worry that i have for apple intel computers is the beauty of the interior. i don't want the insides of a g5 powermac to look like the wire mess and ugly motherboard, etc that i have at home.
hope the motherboard and stuff will look just the same.