Give him a call.
Actually, GHWT's drums can help you to practice some basic drum movements as some simple training drum kits, it can really help beginners. And the same for the vocals, just as a karaoke session... Maybe someday they can syncronize such games with real (MIDI) instruments, in order to be real training sessions.
Following that line of thought, Yamaha's Keyboardmania (http://en.wikipedia.org/wiki/Keyboardmania) was a 24-key music keyboard and the player had to synchronize it with the scrolling notes, sounds familiar? I wish they could build such thing for Guitar Hero or Rock Band