Attention, busy people of Hong Kong: a new mobile service to be launched in the city might just save you up to 30 minutes a day.

QLess, a US-based start-up, aims to free people from the need to wait in line at stores.

The system is straightforward – a business owner uses his store's computer to link up over a website with would-be patrons who have previously given their mobile phone numbers. The consumer is given a "virtual" place in the line and informed with a call or text message when their turn has arrived. They are free to wander around or take care of other tasks in the meantime.

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