GoLocal, Spark, DroneUp, and the rest are a mess of brand names and business investments, but further proof of all the bets Walmart is placing on mastering delivery before Amazon becomes the de facto standard. Not every one of Walmart's moves against tech giants like Amazon or Netflix have worked out — see the sale of Vudu to Fandango — but with last-mile delivery, Walmart is at least playing in a space it's already familiar with.