With the Food and Drug Administration ruling in January that meat and milk from cloned cows, pigs, goats and their offspring is safe to eat, the only thing keeping the superburger off your dinner plate is time. It will be a few years yet before cloned meat hits store shelves. Cloning the perfect (and tastiest) cow can cost upward of $15,000, which makes clones themselves too expensive to eat, so we'll have to wait until they spawn enough offspring (the old-fashioned way) to feed the masses. Meanwhile, researchers are busy formulating all the fixings. Take a look at what science is doing for the burger, from bun to beef and everything in between.