There appears to be a new game on my iPod (20GB;3gen) under iPod update 2.1 -- Accessed via the normal Games menu, it's called "Music quiz" and is like Name that tune... It chooses a piece of music randomly from your iPod and lists several track names, one of which is the name of the piece playing. You simply scroll and select the track title to play. As time passes during each playing track, names drop off the list, and you get fewer points for a correct answer.
Mac OS X Hints
http://hints.macworld.com/article.php?story=20031021093225422