HP launched a new, global green initiative called Power to Change that is powered by Adobe AIR. The campaign encourages users to download a new desktop widget that records the cumulative energy savings associated with participants turning off idle PCs when not in use. From the Power to Change website:
"With Power To Change, you can help make the world a greener place. The simple act of turning off your computer can help reduce energy waste, curb carbon emissions and save money."
The cumulative savings is then shared in a number of ways including a widget (see below). This is a very creative approach to not only promoting a green message, but also to encourage participation from users of the application. My favorite feature: the application can remind you when it is time to leave work so that you remember to turn of your computer.