If one visits a friend in a Delhi suburb, one will notice on the side streets an istri wallah with a wooden cart that looks like it was designed in the sixteenth century, using a coal-fired steam iron that looks like it was invented in the eighteenth century, to press clothes from the neighborhood. These days, however, he has a twenty-first-century instrument in his pocket; incoming calls in India are free under most calling plans, so it costs him nothing to find out where his services are needed.