Amazon orders keep getting faster. The e-commerce juggernaut said Monday that it is making a big push into ultrafast fulfillment with new 30-minute delivery tests in Seattle and Philadelphia.Through the new service, dubbed Amazon Now, customers can choose from thousands of essentials, such as diapers, milk, pet food, electronics, and more, delivered right to their doorstep in under half an hour. In the Seattle test, Amazon workers pick and bag items at its warehouse, which are then handed off to Amazon Fl ...