Associated Press writer Jonathan Fahey reports the results of an Electric Power Research Institute study to determine how much energy an iPad consumes in a year. “The answer: not much,” writes Fahey, noting that “the annual cost to charge an iPad is just $1.36.” He adds: “…if people are using iPads instead of televisions to play video games, or ditching their desktop computers for iPads, the shift to tablets could mean lower overall power consumption.”
Despite the nerdy implications this is the single biggest argument I have for HMD/HUD's like google glasses. It has the potential to drastically reduce the amount of e-waste and power consumption compared to current devices.