Plant a tree with your iPhone

US nonprofits Sustainable Harvest International and Trees for the Future are benefiting from sales of an iPhone app.

As Mark Philips pointed out in Plant a tree with your iPhone, "That might seem quite dull, but it's the potential of the idea that excites me. At it's heart, this app is a virtual gift (albeit one you buy for yourself)...

"From taking the simple tamagotchi style approach of caring for a goat through to a means of providing detailed feedback involving video clips, totalisers and maps showing people where and how they are making a difference, the iPhone is now offering us a new route to bring donors and charities closer together."