Just released vtgrab 0.1.1: now it's possible to actually control the machine whose console you are observing, 'just like' you're at the console (for very limited 'just likeness').
Got communications going with the jazPiper, albeit unreliably. I'm stuck at how to get the thing to switch directions from reverse to forward, so at the moment I can only send one command to it before the game's over. :-(