Oh yeah this, yeah they make it for other systems. There's some board out there that you can buy online called a MGCD. It makes it so on games that were in the arcades but came out for systems can become like Jamma games. Like you have MvC2, it has it so it doesn't go to the select screen and stuff. Instead it goes straight to arcade mode. Also the start button doesnt react as start it reacts as taunt (Start + A). Pretty cool in my opinion. Ask SNAAAKE about them. He worked at an arcade that had them. He also told me that a while ago he say GGXX being played on it at a local arcade. Also if you go and do a search you can find ones for PS2, Xbox, and GC. Be prepared to pay around $230 - $400 for these things. I might get one for each sys that I put in my cab when I get a little extra bread. Thanx.
-See Ya!!!
P.S.: Yeah these boards let you hook up light guns and other arcade parts to them, pretty tight if you ask me.