I (Nick) have a couple on my couch for developement, but also am implementing one for remote control of various items in the house.
With the new Remote Control section of the software (available now), I can log into my Fusion Brain instances from anywhere in the world on any web device, and control anything. One problem around here with the proximity to NORAD (US Air Force base built inside a mountain and I can throw a rock at the security gate), is that they like to swamp the area with random EM noise. So garage doors dont work far, phone and wifi get low signals everything. Dont even bother with the door opener if a government official like the President is visiting, because then it goes into overdrive! So my plan is to hook it up to my garage door and by using my cell phone through the GPRS connection, open and close the door.
Other things I will be controlling include my air conditioning unit which has a rudimentary on/off timer but gains a complete freedom with the Fusion Brain, as well as for energy efficiency I will be placing lights on controlled circuits to turn the lights off (as well as electronics such as TV's and radios) when I leave the room, and reinitialize them when I enter.
So many possibilities, so little time...