I wrote this software a while ago but only just got around to uploading
it. FUDIKaosDS allows you to emulate some of the functionality of a
Kaospad with your Nintendo DS and Pure Data or Max/MSP using a wifi link.
Download FUDIKaosDS from the same place as my other NDS/wifi/interface
Thanks to 'freeka' for the donation that funded it.
PS If you want more info please cc me off-list as I don't check this
list very often.