Traditionally, people wanting to be driven from A to B could hail a cab on the street. Subsequently, cabs could be hailed by telephoning for one. Now it is possible to use a smartphone to organise an ‘electronic hail’. However, if the smartphone uses Uber’s software, then the car that comes to pick them up will not be a licensed taxi. The question is: can Uber’s new software destroy the old order of labour that governs the life of a taxi-driver, a legal order characterised by the state-licensing of taxi cabs?