Michael Man has five smart devices on the dashboard of his taxi to pick up orders from ride-hailing applications, accept bookings, check uncongested routes and swap information with other cabbies. Earning more than HK$40,000 (US$6,940) a month as a driver on the night shift, he said the gadgets helped him make the most of his time behind the wheel and without them, he would earn 40 per cent less. Hong Kong’s 40,000 cabbies are notorious multitaskers who drive while tracking numerous smartphones and devices, a habit that has raised concerns about road safety. Now they and other motorists may face…