In late 2016, the company launched its first experimental Go store, which replaces cashiers with a computer vision system that automatically detects when you take products off the shelf and checks you out as you leave the store. Go now has two locations in Chicago, three in Seattle, and one that just opened in San Francisco today, with more planned in California and New York City over the course of the next year. Bloomberg reported in September that Amazon may open as many as 3,000 Go locations by 2021, with the goal of competing with stores like CVS and 7-Eleven, as well as fast casual and made-to-go meal establishments. The company is also now experimenting with brick-and-mortar stores that sell only four-star rated products from Amazon.com, starting with a location in New York City.
On May 5, 2014, Amazon unveiled a partnership with Twitter. Twitter users can link their accounts to an Amazon account and automatically add items to their shopping carts by responding to any tweet with an Amazon product link bearing the hashtag #AmazonCart. This allows customers to never leave their Twitter feed and the product is waiting for them when they go to the Amazon website.
Barnes & Noble sued Amazon on May 12, 1997, alleging that Amazon's claim to be "the world's largest bookstore" was false because it "...isn't a bookstore at all. It's a book broker." The suit was later settled out of court and Amazon continued to make the same claim. Walmart sued Amazon on October 16, 1998, alleging that Amazon had stolen Walmart's trade secrets by hiring former Walmart executives. Although this suit was also settled out of court, it caused Amazon to implement internal restrictions and the reassignment of the former Walmart executives.