SQD did post this question in the past (July 2010?). She and I had a few discussions about it and actually started working on a joint story with this premise. I think I dropped the ball first due to RL and then she disappeared.

My answer to the question had to do with Kryptonian biology. I don't foresee having time to start writing again until at least August of this year, but maybe if people are still interested in the premise later this year, I'll try to contact SQD and see if we can get it moving again.

B