By stimulating the rapidly-multiplying cells and adding nutrients and electric currents, the researchers hope to be able to build muscular mass from what are now little more than thin cell layers. If they can sufficiently layer the tissues without the help of blood vessels and figure out how to introduce flavor (ordinarily lent by fat), it's only a matter of time before we're chomping down on "chops" and overdosing on "bacon."
We’re not even going to attempt to unwrap the ethics or general creepiness of this. One interesting point, though: large-scale commercial livestock operations are often heavy polluters, and if synthetic meat could one day replace even a small percentage of the meat we consume it would have an enormous impact on everything from water resources to CO2 levels.
http://popsci.typepad.com/popsci/2007/06/the_other_other.html