Run an AppleScript when the power button is pressed.
By running an AppleScript when the power button is pressed, you can setup your system to immediately shutdown, restart, sleep, or eject a DVD. This is great for headless servers.
Known Limitations: PowerBlock does NOT prevent a hard shutdown if you hold the power button for more than 4 seconds.
Updated on Aug 05 2013
Powerblock is not compatible with OS X 10.9 due to changes in the power system.