In the directory ftp://sipb.mit.edu/pub/netbsd/dosemu, you'll find an
updated version of my in-progress dosemu port.  You'll need to
pick up pcvt-3.20b23, apply other kernel patches, and build dosemu to
give it a whirl.

I've gotten graphics mode to work now, but DPMI still hangs the machine
quite nicely and DOOM2 crashes the emulator :(

==John