This is a pretty neat application. It allows iPhone users to plant a virtual tree from their phone while simultaneously activating the planting of a real tree. Originally showcased at TED, the app is now available to the masses on iTunes.
The real trees are planted by the Conservation Fund, and they will begin with the restoration of a vulnerable wildlife habitat along the Gulf Coast. It’s sponsored by Ecolife Apparel, makers of cotton “green” underwear, and was developed by iPhactory.