I tried dosbox on Mac OS X on my 1.25Ghz G4 laptop -- it ran an old 286 (or was it 386?) Disney Coaster game sorta well enough to play, but I couldn't get it to do much else. It runs like a 25Mhz machine or something they said (on a typical modern system) so... prolly better to have a Portable CoCo Emulator (PCE?) written. Isn't that was MESS sorta is? Allen