There is another "funny" thing which catch my eyes. Now, the "softpoweroff" mode works a little bit different. I changed a line in the /etc/mce/mce.ini file and the when I press the powerbutton long enough the device powers off the screen and blocks all the keys. Compared to pre-10.7 time, I hear a "click" when I press buttons or tap the screen. Actually I can confirm that nowthing is beeing changed "in the background", just the tapping sounds.
It doesn't make sence, because everytime I tap the screen and press a button in "softpoweroff mode" the CPU has to do something (playing a "click" sound) and probably gets out of it's powersaving cycles.