Tracking and analyzing power consumption might not sound like a fun thing to do on a nice Sunday afternoon. Well, that might change as NEC turns this information into an online game--it uses a Wifi tool that is attached to your circuit breaker to track of power consumption from where it is sent to your PC and the data can be used in games such as "Carbon Diet" and "Carbon Ball". Nec estimates that it will sell 20 million worth in such games over the next three years.