tmux is one of the most popular Terminal Multiplexer (never used it? If you’e a heavy terminal user, then probably you need it) . The latest release is v1.8.
Recently I wrote an article on managing multiple terminals with Terminator, tmux is a very similar program but I feel – tmux is more efficeint/faster, specially with vim (or any command line editor such as Emacs). So, whether you already use a similar program or not, you should try tmux.
Installing tmux on Ubuntu
sudo apt-get install tmux
Here is a screenshot (designing my personal blog with jekyll, I’ll launch in next few weeks) using tmux with vim editor.
checkout official website for more details.