Polymer 1.0 - Web Components and Material Design
You might have noticed a short announcement at the last Google I/O about Polymer, which just released a 1.0 version. Polymer is great because it allows you to create next-generation (web)apps with native app capabilities using web components. It also provides a catalog with elements you can use. Among others the Paper elements which use Google's Material Design principels. There is a lot more to say about polymer, but if you want to get yourself a full demo app, try the starterkit! Also, you might be interested in using Polymer together with Drupal 8.