In answer to Amazon's Prime Service, Walmart has cut the delivery time of its ShippingPass e-commerce subscription program to two days rather than three.
In the shadow of Greenwich's 02 Arena - the futuristic dome originally built as London’s showpiece for the Millennium - what looks like a picnic cooler on wheels zips among groups of gawking children. This little delivery robot, designed to autonomously navigate sidewalks, not roads, later this year will begin making deliveries from local businesses direct to customers. In doing so, it may just conquer e-commerce's final frontier: the Last Mile, the least efficient and most problematic step in the delivery process.