[daveguy]

Well, to be fair, non-exclusive means Amazon gets to use the developed tech in any way. The authors of the IP retain the right to use the tech in any way they see fit too, including making a competing product or applying the tech to novel domains or licensing it to a competitor. Of course if Amazon wanted to apply the IP to a novel domain they could too.

This is a better than most employee deals where the employee has no rights to the developed tech. Even most contract work gives the company exclusive rights as a "work for hire".

It's more like an MIT license between the developer and Amazon rather than a proprietary license just for Amazon.