Activity Description: A system that involves physically transporting data saved on a USB memory stick back and forth between one central computer -- at, say, a school with a fast connection -- and unconnected machines in outlying areas, replacing a phone line. The school can compose e-mail messages and specify topics for an Internet search. Then it can send a teacher or gardener off -- by bicycle, perhaps -- to plug the memory stick into a central computer miles away, upload the current batch of communiqués, and retrieve the results of yesterday's requests. Unlike the vast majority of the world's technological innovations, this gadget has been designed expressly to provide solutions for the needs of Africa.