Companies like Amazon are still battling with the logistics of it all but seem to be making some good progress in the space. If Amazon can keep reducing delivery times, they are going to eat away further at the competitive edge of bricks and mortar retail.
Same-day delivery is of course a great thing. We would all love to receive the products we ordered online within a few hours. However, as this infographic from 2Flow outlines this comes with a few challenges.