The most recent feature was uncovered by Windows 8 Italia by typing “power button” in the Start Menu.
Upon clicking “Change what the power buttons do,” a power options window from the control panel is launched.
Then by clicking this item, the Hybrid Boot settings are revealed:
“Use Hybrid Boot to reduce startup times after shutting down your computer. Disable to revert to “classic shutdown” behavior. Restart behavior is never affected by this setting.”
That’s interesting… not really sure what…