I second (third? fourth?) the suggestion that some enterprising soul resurrect the design of one of the out-of-production 060 cards. Amiga users would lap this up, even if it was just a straight-forward re-issue of the original design. If it was a slightly updated design, with newer chips that performed the same function (perhaps even faster) it would be a real seller!
(Just make sure there is an A3000/4000 version so I can get one!).