USB Eco Button

Is there no end to the many uses of a USB port? Apparently so, with the USB Eco Button being the latest device to hit the market. Made up of a green plastic button, pressing it will turn your Windows-powered machine into an energy-saving ecomode, where the included software will help monitor and record your power usage alongside the amount of money and CO2 that the button has helped you save. No idea on how long it will take to recoup the $14 asking price for this, and is the manufacturing process of the USB Eco Button green to begin with? We also do wonder about the performance hit you will take with your computer running in ecomode.