從「Amazon Launches One-Hour Delivery Service In Baltimore and Miami」這邊看到的，引用的報導是「Amazon launches one-hour delivery service in Baltimore」。
有付 Amazon Prime 費用的人在這兩個地區將提供兩小時到貨 (free)，或是一小時到貨 (多收 USD$7.99)：
The service will be available in select zip codes to Amazon Prime subscribers, who pay $99 a year for unlimited free two-day delivery on more than 20 million items. The one-hour service, available through the Prime Now mobile app, costs $7.99, while two-hour delivery will be free.
去年在曼哈頓的實驗算是成功吧... 只是 FAA 同意無人小型貨運機的實驗授權一下來就這樣公佈啊... (Amazon Gets Experimental Airworthiness Certificate)