You appear not to realise that SGI hardware contains MIPS CPUs. A large amount of code is shared between these platforms:
http://www.openbsd.org/sgi.html http://www.openbsd.org/octeon.html http://www.openbsd.org/loongson.html
A mips32 port would also be very desirable for all those shitty little routers with their ancient Linux kernel, but sadly nobody is working on that at the moment.
So, should the network and firewall OS that many people claim OpenBSD is, slash its support for MIPS devices?