This is a terminal which displays a shell in a glut-window (OpenGL). It emulates the rxvt-ansi-codes. The last letter which was written rotates :)
A TTY small utility that sits between the user and their shell to perform logging and other tasks. s1c Flatline also enables a method to "inject" data into a TTY (from other TTY's) as if it were entered via STDIN of the controlling TTY.