Now I can prank my brother's new iMac and sit back and snicker.
Somehow, that's what every one thinks when they see this capability. I'm sure that the sense of humor at Apple had nothing to do with this, of course. I think it just fixes the problem when Apple went from horizontal boxes ( II, IIx, IIci, some Quadra models, etc) to the vertical boxes (Power Mac G3, other Quadra models, etc), I mean, the poor cpu never knew which way was "up"!