I use iTerm2 (with Solarized theme), zsh, and Oh My Zsh (with the agnoster theme).

I think it's Powerline [1] or at least inspired by Powerline.

[1] https://github.com/Lokaltog/powerline

It's powerline-shell https://github.com/milkbikis/powerline-shell

Yeah it looks great. Was just about to ask that myself haha

Agreed, that is a must have.

I second this!