tmux 1.1-1 (powerpc binary) in ubuntu lucid

 tmux enables a number of terminals (or windows) to be accessed and
 controlled from a single terminal like screen. tmux runs as a
 server-client system. A server is created automatically when
 necessary and holds a number of sessions, each of which may have
 a number of windows linked to it. Any number of clients may connect
 to a session, or the server may be controlled by issuing commands
 with tmux. Communication takes place through a socket, by default
 placed in /var/run. Moreover tmux provides a consistent and
 well-documented command interface, with the same syntax whether used
 interactively, as a key binding, or from the shell. It offers a
 choice of vim or emacs key layouts.