Walmart's Amazon Go rival is a cashierless Sam's Club store

The Walmart and Amazon rivalry continues, this time involving plans to launch another type of futuristic store. Walmart is transforming one of its Sam’s Club locations in Dallas, Texas, into a tech-filled warehouse store where customers have a “mobile-first experience.” How does that work? It’ll involve a new type of storage associate that Sam’s Club calls “the concierge of the …