If I'm sitting on the Online screen, it would be nice if a sound played when an active VS game changes from Waiting to Play. I'm tabbed out while all the matches are waiting, and I know from previous async multiplayer games I don't like having too many games going at once. So I'd rather just get notified when a game is ready.
Noted - it *should* play a sound now when it is your turn and it *should* e-mail you as well. But we are looking for other options as well. (Blinking game icon perhaps)
It doesn't currently play a sound when you're in the Online Menu but I'll add that.