[prawn]

Not sure if the market is big enough, but there could also be an opportunity for servicing foreigners in those countries fearful of being quoted a 'tourist price'. e.g., you're in Xian and are going hiking at Huashan the next day. You'd like to have a package of supplies (drinks, snacks, packed lunch) delivered in the evening so you're ready to go in the morning. Some of things would be trivial to organise with a walk around the block, but others might be difficult because of the potential language barrier.