From Amazon’s website:

We’re excited to share Prime Air — something the team has been working on in our next generation R&D lab.

The goal of this new delivery system is to get packages into customers’ hands in 30 minutes or less using unmanned aerial vehicles.

Putting Prime Air into commercial use will take some number of years as we advance the technology and wait for the necessary FAA rules and regulations.

So, I guess we can soon expect to see missed delivery notices like this in the future, courtesy of .

Via Amazon.