It's a straightforward port to the N900 (I have previously compiled and configured for Atari Lynx), but I've not configured or tested it with the PC Engine emulation. If anyone wants the archive, and is familiar with the command line, I'll send it over. Pretty sure Smoku's Sixaxisd stuff emulates keypresses, so should just be a matter of finding the correct keycode to get it working with the controller.

I am absolutely stacked with work at the moment, but I might see if I can have a play around with it tomorrow.