OpenMSX as it says, is an open source MSX emulator for Linux, Windows and Mac. As Apple Macintosh user I don't have experience using openMSX on Windows and Linux. Therefore this part goes about using openMSX on a Mac.

As told before, I think openMSX is the most accurate and reliable emulator for the Mac. I think there is just one disadvantage, and that is there is no simple users-programm (a so called fronted) in the package when you download openMSX for Mac. Lucky enough for us Mac users, there is a Japanese guy who made such kind of programm, called NekoLauncher openMSX for Mac including a manual how to install it (although in Japanese, looking at the pictures in the manual and using Babel Fish it is not quiet hard to get it to work).