Those not using Windows at least.
This news is a bit old, but worth pointing out to those that haven't seen it.
Gens homepage
This news is a bit old, but worth pointing out to those that haven't seen it.
Gens has been ported on BeOS
Caz made a wonderful work : joystick, sound, Mega CD and 32X are supported!
He used Allegro library for the port, that means you can use the same sources with minors modifications to do a linux version, if someone is interested
Gens homepage