Although the service only has limited availability right now, Amazon just launched their newest retail initiative. It's called Prime Now and aims to deliver your most of your purchased items to you in as little as one hour. The video above shares that the new Amazon service is only available in Manhattan for now, but teases that it should be coming to other cities soon. To get the service, Amazon Prime members will need to download the Amazon Prime Now Android app, and order through that. If you want orders to reach you in an hour, it costs an additional $7.99, while a two hour window is free. We will keep you posted when the service hits new cities. Do you think this new Prime Now service from Amazon will work out or flop?