I'm not sure if that means it's working or not. The idea behind this move is to make a quiet machine much like most other applicances in your home. Makes sense to me. Unfortunately the computer still has two noise makers that Apple couldn't get rid of. The Hard Drive and the CD drive.
Sleep mode uses almost no power, yet has the ablity to wake up much faster than a full boot.
So Apple's thought is that you simply put the machine to sleep instead of powering it down every day. Makes sense to me. Memory Upgrade - Any of you that have tried upgrading the memory in an iMac will rejoice on this one. I've had the pleasure of upgrading over 20 iMacs and until now it was absolutely terrible. I had bloody hands more than once.