Pocket Shop, a North London startup promises a one-hour grocery delivery service. There are some 15,000 Sainsbury's products shoppers in the can choose from, with orders submitted online or through Pocket Shop's smartphone app. Within an hour of the order, items are delivered. Service scope is limited to Camden but there are plans to expand it to other areas. As service expands, other retailers such as Tesco, Asda and Waitrose would be included. To read more, go here.