following Fat Elvis' nfo, i found a way to max-patch the KPK. all buttons are capable of midilearn in live now plus lights give you reasonable visual feedback.
it is far from finished, but you'll get a feeling for what is possible.
you can get the patch here http://kpkproject.twoday.net/ and improve it.
for more background info on hacking the kpk see these discussions:
http://www.korgforums.com/forum/phpBB2/ ... 852#164852
http://www.ableton.com/forum/viewtopic. ... rol+lights
and http://www.thecovertoperators.org/archives/149#comments
cera