Im glad the voice chat is the way it is for some reasons.. Morons that will cuss the crap out of little kids and wait.. what if their parents around.. and hear it.. ::Calls up nintendo:: and complains.. Nintendo is only watching out for number 1..smart move.
Obviously they can't use it when you just play a random person (think of all the paedophiles :-X) but it really is a shame you can't use it with a friend.