I guess this the most closely related forum to ask about this. Besides, Paratech's $98 laptop is getting old.
pSX Author once said somewhere that a friend of his was working on a Mac port (or wanted to work on one) of pSX.
Is that still happening? I know some of MAMEDev has collaborated with pSX Author in the past so I thought maybe you might know a little something..just to feed the rumor mill.
pSX runs remarkably well on XP via Parallels on my Mac though, which is pretty amazing.