During my adventures on youtube i bumped intoo this...
http://www.youtube.com/user/DeebachOrgans http://www.deebach.com/00000198670088307/0000019867008c311/index.html It seems these people take a Korg PA2X(upper) and a Korg M3(lower) add it intoo one box... then somehow add a lot of their very own sounds including direct of the box compatabillity with Tyros styles and sounds..
And then somehow they make everything controllable straight from the PA2X..
It sounds sweet...(and it can be played without peddals as a double keyboard)