By Daniel Kline Usually Amazon is the tech leader, but Walmart may actually have an edge that will help customers get what they want faster. Amazon (AMZN) – Get Amazon.com Inc. Report has set the standard for delivery and fulfillment. Before the online leader declared that free, two-day shipping would be the minimum, there was no real set policy for delivery. Basically, if companies even had a website, they charged customers for shipping and items arrived whenever they arrived. That has, of course, changed and Amazon has pushed expectations from two-day to same-day in many cases. Walmart (WMT)…