Bunsen
Admin-Witchfinder-General
http://www.metamage.com/code/MacRelix/
Also cute/interesting:
Maxim: A Mac Simulator in Javascript
Never heard of this one before - anyone else? Sounds a bit like MachTen, only free. Also, unlike MachTen, it looks like it is still being actively updated.MacRelix is a Unix-like environment that runs on Mac OS, formerly called Lamp (Lamp Ain't Mac POSIX).
MacRelix supports three platforms:
68k: classic 68K application with code resource tools
std: 'standard' build, non-Carbon PowerPC CFM application and tools
osx: Carbon PowerPC CFM application and tools
Also cute/interesting:
Maxim: A Mac Simulator in Javascript