First about the previous flamewar. My present girl friend i've gotten by ddr. I think she's hot, but judge for yourself.
http://jon.aslund.org/bilder/2004-07-28-he...80-dsc_0973.jpg (Yeah, i just wanna show off ;p)
Now. DDR on gp32 would be possible. Use the standard joystick for the arrows, and for double arrows, use a secondary set of arrows (That's how you do it on a dual shock 2) For example
Joy = Arrows
L = Left arrow
R = Right arrow
A = Up arrow
B = Down Arrow
So if you need to press a multiple arrow lets say up and left
you move the joy to the left and press a ^^.
I would love if someone would port, say stepmania (stepmania.com, opensource, early versions may work?). DWI or any other DDR simulator to gp32 ^^