Homebrew: Terminal Emoticons How?

I use homebrew for package management on my mac. Today after updating homebrew I saw something I've never seen before;

There was a tiny beer emoticon in the terminal. How is this being done!? What kinds of terminals is this supported in? I'm using iTerm 2 for my terminal.

Related: https://github.com/mxcl/homebrew/issues/17085

Yikes! iTerm says it was fixed in a build on 01/20. But I believe the beer mug is a branding point. Maybe just update.

http://code.google.com/p/iterm2/issues/detail?id=2279&sort=-id

ITerm Patch for emoji: http://code.google.com/p/iterm2/issues/detail?id=2062#c5

How its done? It is just Apple. The glyph substitution algorithm is picking up the text and replacing it with emoji (which is ttf on mac) – Benjiman 50 secs ago edit