Signal to Noise

Just came across this post detailing how you can do VoIP chat using your Nintendo DS. Pretty cool hacks:

VoiceChatClient is a homebrew application that lets you freely call anyone who also has VoiceChatClient installed on their DS. This hack even adds extra value by transmitting what you write on the touch screen to the other person! VCC requires hacked firmware or some type of passthrough device.

DSpeak has been developed by Nintendo themselves, but aside from a demo at E3 in 2005, nothing more has been heard about this program. DSpeak will reportedly allow in-game and out-of-game chat. And when you speak, an on-screen Mario or Wario avatar lip syncs along!