I think, I read somewhere, that MorphOS already runs on A1... Not 100% sure though...
And about piracy, there's always some "gray area" between legal and illegal.
Like using pirated version of game/program instead of original one owned, becouse of damaged original, irritating copy protection, added cheats etc.
In same way, some people could buy AOS4 but use cracked version, without dongle protection (Maybe on "unofficial" hardware too)
(I'm not saying anything, like someone should crack AOS4, so don't blame me for that...)