Hi, how about this wacky idea...
Use one of the LED's on the Wrap boards (or other hardware if unused LED's exist) as a switch connected to an opto-isolator. -->(
http://en.wikipedia.org/wiki/Opto-isolator)
In the same way that a user can login and use the "wake on LAN" to start a computer, a link could be created that would flash or run continuously one of the LED's connected to an opto switch acting as a relay to...
turn off/reboot an outlet with computers, or turn on/off a pump for the liquid helium that cools the small fusion reactor that powers your network of computers.
Fusion, fission, collapsing field magneto flux capacitor... whatever floats your boat
Topic: Use LED as switch...