Perhaps for less altruistic reasons, but often with positive results for the poor, corporations have made India a laboratory for extending modern technological conveniences to those long deprived. Nokia, for instance, develops many of its ultralow-cost cellphones here. Citibank [part of Citigroup] first experimented here with a special A.T.M...to help slum dwellers... And Microsoft has made India one of the major centers of its global research group studying technologies for the poor, like software that reads to illiterate computer users. Babajob is a quintessential example of how the back-office operations in India have spawned poverty-inspired innovation.