I love Nintendo's online service. For the price we pay for it, it's a very good service in my opinion. Play "anyone" in the world who is online with there DS. The only problem I see with it (which I think they are now fixing) is that once you play someone you like playing with, there's no way to add them. I here MP:H has a sorta voice chat lobby, but I'm not sure. I only played it 3 times online and got my butt handed to me.