[Matt Devo]

When you go to change that setting (shutdown function), the tooltip at the bottom states 'Define what action XBMC should do when it has been idle for a long period of time.'

At least for the Aeon Nox 5 skin.

I have that set to suspend anyways.

yeah, that's a bit of a misnomer. It literally means 'what should XBMC do when the Shutdown timer (setting directly above) expires,' but also affects the function performed when the powertoggle remote code is received.