NetBSD for Archimedes (arm/26)
AC writes: "Another NetBSD port has come out of the closet. Ben Harris
reports that
NetBSD/arm26 can mount its root file
system over NFS now, an important milestone! A binary test kit
can be
downloaded from his ftp directory."
Darwin does have an x86 version. There are also persistant rumours that MacOS will compile on the x86, but Apple is not likely to release this any time soon.