> > and backgeound music of some sort?
> Mmmmmmm... I would prefer, for example, listening to the demo noise of the
> nearest machine which has noises in the demo loop.
There's one implication there, and that's that only visible arcades are updated to save some CPU load (I have to steal some performance *somewhere* ;-). That's why the sound is disabled until you actually activate a game to play.
However, *some* background noise should be cool so maybe I'll add some generic arcade sounds in the background and/or music.