http://www.ndshb.com/cgi-bin/cfiles/cfiles...?0,0,0,0,12,130 I found this homebrew for voice chat on this Homebrew database... Does anyone happen to know if this lets you do voice chat through MSN on it? Or if it happens to be in Japanese?

 

I used this a long time ago. It's basically a drawing board you share with everyone else using the program. You can also hear what everyone's mic is picking up. All people did was cuss and draw explicit images.

Edit: the version you linked is old and I'm not sure if the server is even up anymore.