The house phone gets plugged into the majic jack which then goes into the computer via USB what the majic jack website says, so I do not think you could use that with the touch.
You can make voip calls though with the touch though with the proper app (example skype or whatever others are available), headphones that have a mic and a wifi connection.
I am sure though that someone will reply if it is possible to use maicjack with the touch, I just don't see how though.