And if anyone's interested here are the platforms supported by openbsd:
Architecture Details
alpha DEC Alpha-based machines.
amiga Amiga m68k-based models (MMU required).
hp300 Hewlett-Packard HP300/HP400 machines.
i386 PC's based on the Intel i386 architecture, including 386, 486, Pentium and compatible processors.
mac68k Most MC680x0-based Apple Macintosh models.
macppc Apple PowerPC-based machines: iMac, G3, G4, G4 Cube ...
mvme68k Motorola MVME147/16x/17x 68K VME cards.
sparc Sun's Sun4, Sun4c, and Sun4m models.
sparc64 Sun UltraSPARC-based machines.
vax DEC's VAX computers.

(http://www.openbsd.org/plat.html)

Ammo