If you think you can implement OpenBSD on a Raspberry Pi machine, shut up and hack. Then, make the result fit with the OpenBSD policy statements in http://www.openbsd.org/goals.html and http://www.openbsd.org/policy.html THEN talk about it.
If you can't do it, no point talking about it. OpenBSD Developers have made their opinions on this system quite clear. If you look at what NetBSD and FreeBSD are saying about their Raspberry Pi support, it doesn't look at all "Ready for use" -- NetBSD doesn't seem to have any useful I/O (i.e., USB, network), and doesn't list it on their platform port pages. FreeBSD is not self-supporting, and the information about it seems to be only in blogs, not the main freebsd website (type "Raspberry" into their search box). The Raspberry Pi people have not seemed overly cooperative with people wishing to port other OSs to their platform, which is, of course, their right...but it is also our right to not show great interest in the system for that reason. Nick.
