1. Scaffold your next project in seconds
2. Angular, Backbone, Ember, 400+ others
3. Grunt build pre-configured (minified, rev'd)
4. Karma unit testing pre-configured
5. Bower 
6. Compile CoffeeScript
7. Compile SASS ( compass )
8. jshint
9. Static server with watch ( auto refresh )
10. Image Optimization

npm install -g yo npm install -g generator-angular
*I've only used this generatornpm install -g generator-webapp

yo angular* Answer the questions yeoman asks

Gruntfile.js

grunt
grunt serve
grunt test
grunt serve:dist