Facebook style comment stream in AngularJS

I built a little prototype of a comment stream in AngularJS.  It has a similar look and feel to Facebook posting streams, but it is a comment stream instead.  In the application I'm working on now, we don't have postings and comments on postings.... just comments.  Anyhow, this was really easy to do with Angular and is very few lines of code.  It was a pretty fun little project.

Here's the plunker: Facebook style comment stream