Well every good OS does hide the MMU one way or another. Wether it is (and should be) available via APIs is a different story, one that has yet to be told since we don't have a Q/Box available.
Sure Basilisk should work, but don't forget that it is emulating a CPU which will give a drastic performance downgrade unless you use JIT or compareable techniques. These do have the downside to be very closely tight to the host CPU.
MOL ain't that, it is more like Wine, mimicing an API which ain't really there, letting the host OS run at near 100% of native speed.
