Although G3s are technically required for OSX, it apparently has 604e support, and people have gotten it running on 9600s and I think 8600s.
That said, those machines are a far cry from a 610, and it's not gonna happen. Even if it were theoretically possible, the machine is only worth about $10 anyway, so the parts that it would take to make it anywhere near compatible with OSX (HD, new processor, new motherboard) would cost more than a used G3 Mac.
Good luck finding a worthwhile use for it, though.