http://forum.gbadev.org/viewtopic.php?t ... &start=334

Just like you can connect to Messenger using a Sony PSP, there's a way to chat with your buddies on a Nintendo DS as well. It requires a pretty amazing piece of homebrew, called Beup, of which version 0.3 was released this week by kevinc. I mean, it allows avatars and emoticons, a custom log-in status, shows if user is typing, hell, it even supports sending and receiving Ink messages! Doesn't that just transform the Nintendo DS into a perfectly portable Instant Messaging device to use around the house.

http://www.youtube.com/watch?v=jiiWW3KO ... ws%2Eshtml