Growl

“Split windows, hotkey bring-to-front, Quake-style drop down console, and Growl support are all things I get a lot of use out of with iTerm2.”

“Because I spend most of my days and nights writing, I do not use communication that interrupts me -- I do not use IM, I don't answer my phone (in fact, my outgoing message says not to bother leaving me a voicemail but to text or email me to reach me the fastest), and I purposely don't use things like Growl.”