News Hi-tech cell phones help Africans trade crops By Oluniyi D. Ajao - 5th Jul 2005 Daniel Mashva heaves his sack of cabbages and sweet potatoes into a rickety shared taxi and travels nine hours under the scorching sun to the market in Johannesburg. RelatedVodacom and Mara Phones introduce locally-built devices to South AfricansFor Africans: Optimise your device, lower your data costs