Do you have an old android device, that you dont need it anymore? Google asks people to donate those old devices for a good cause: “Android for Good” at Google I/O 2011.
Android for Good evolved from a program at Google started by one passionate engineer with an idea to help the developing world through technology. A small team collected Android devices from Googlers around the world and organized their donation to groups including Grameem’s AppLab Community Knowledge Worker Initiative in Uganda, Save the Elephants in Kenya, V-Day in the Democratic Republic of Congo, VillageReach in Mozambique,VetAid in Tanzania & Kenya, and UNHCR in Central Africa.
source: Google Code Blog