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IRC Channels
You can chat with other devkitPro toolchain users and developers on the Blitzed network using an IRC client like Xchat
#gbadev - programming the Nintendo GBA
#dsdev - programming the Nintendo DS
Generally there are more people in the DS channel than the GBA channel so if you don't get much response in #gbadev try giving us a shout in #dsdev.
#gcdev - programming the Nintendo Gamecube
#wiidev - programming the Nintendo Wii
The same applies to #wiidev and #gcdev, there are usually more people around in the newer channel.