I just got done playing around with the update and there still doesn't seem to be power management under macosX. How can this be? I can't understand how apple can release what they call a final version without allowing powerbook users to use the operating system when they are on the road. I get about 2 hours under macosx as compared to about 4 under macos 9.1. Is there anything that can be done to save power? Under linux the drive can be spun down using hdparm and sleep is done using pmud. I can't believe apple has left powerbook users high and dry on this one.