Twin is a text-mode window environment. It turns a text terminal into a 
X11-style display with window manager, terminal windows, and can also serve
as display for remote applications. Each terminal window provides the 
functions of a text-mode Linux console. Twin runs on X11, libggi, itself, 
the Linux console, and any termcap/ncurses-compatible tty. It supports 
multiple simultaneous displays, and can attach/detach each display on the fly.