What is the difference between Polymer elements and AngularJS directives?

Question

On the Polymer Getting Started page, we see an example of Polymer in action:

Answer 1

For your question:

Are there plans to tie Polymer in with AngularJS in the future?

From the official twitter account of AngularJS : "angularjs will use polymer for its widgets. It's win-win"

source : https://twitter.com/angularjs/status/335417160438542337