If you haven't made up your mind on a Christmas present yet, put this one on your list. This game is fun. Although my wife isn't thrilled with it because for the first time in video game history, we got a game that I picked up way faster than she did.
The technology is promising in a number of ways. I can envision actual instruments being created based on the way this thing works. Simple, easy to play, easy to read music. Like the game, Pente, even though the fundamental operation is simple, the user can make it much more complex with practice and imagination.
The video game's popularity could make music and instruments in general, much more user friendly.
Watch this 8 year old Guitar Hero Prodigy on Guitar Hero 2