As you have said, there is no sound match effects for this version as these would have to be taken from the UMD and will spoil the speed of the game. Does that mean that the entire match and game is silent or have you got the odd whistle in there etc.
There aren't any match sounds and we'll wait to see what the feedback is like before considering whether we want to look at the possibility of including them in the future (although we did consider a whistle but felt it would end up being more irritating without any other sounds).
Ultimately we felt that for this version it was better to retain as much speed and battery life as possible.