Well if my theory is correct, i would say that most of the work is already done, you would simply have to import the cpus from (for example) the "others" section of fbaxxx or whatever - or just the CAVE set and compile accordingly. Did you even take a look at the source to see the possibilities? Yes, I did -> mame sources, and yes you can import other things (many arcade machines uses A6800 and Z80), I am just totally not interested by the PSP (not interested at all in many things now). As for an fbaxxx update that would add support, why not, IQ has done apparently a great job with a new rumble function that would work on metal slug, I have corrected some things on the HDTV selector since I now have an HDTV, maybe time for a release this week, I ll see.