I'm very surprised that there is pessimism about the production of deathless meat by comments here. This is a phenomenal idea. Imagine if we drastically reduced the amount of animals needed to keep up with the food supply, at least in the US, while keeping taste quality. All kinds of problems would be solved. My only concern would be the economy of farming communities, but I doubt that the demand for whole-animal meat would go down. It would become a delicacy, and the price might go up.

Technical question: would pork grown by stem cells be considered kosher?

By the way, if you think any scientists are too good for a million bucks, you don't know scientists. That said, the expense of production would definitely outweigh the prize.