As I thought, it's early days. When I searched for fruit machine emulators a couple of years ago there was nothing... so it is fantastic this is being done at last!
I have managed to run MFME 1.1 through a PC emulator on my macintosh. Biggest problem was the massive monitor resolution required! Seems a shame to buy a large scale monitor just for this, when photoshop, m.a.m.e. Sims, QuakeIII, video editing, etc. are happy enough in 1024x768 or less. Hope these emulators soon get a scaleable window so you can play them on one side of the desktop as you work for example. You could have two machines side by side for simultaneous play!