This is one of the coolest and possibly the most unnecessary mods I have ever scene. This guy took his Nintendo DS version of Guitar Hero: On Tour and integrated it into a full sized guitar to make playing it easier, it also transmits the music to his entertainment center. I agree that the DS version hand grip is borderline horrible because it will cause you major uncomfort after a couple of songs, but this mod makes the game huge, which defeats the purpose of a portable game. I guess unless you don’t mind walking round the streets with a guitar and headphones you will be fine.