ftp://ftp.netbsd.org/pub/NetBSD/arch/next68k/snapshot/20041106/

It seems to work fine over netboot, but I can't install it to a HD, 
since disklabel doesn't seem to work anymore:

partition> W
Label disk [n]? y
ioctl DIOCWLABEL: Inappropriate ioctl for device
ioctl DIOCWLABEL: Inappropriate ioctl for device
disklabel: ioctl DIOCWDINFO: Inappropriate ioctl for device
Label not written

Of course, it doesn't help that next68k doesn't actually have an 
installation program.

   -- MW