"...Homeobox genes (or Hox genes), which flick on during development and govern which body parts go where, were first found in fruit flies in the 1980s, says Sean Carroll, an evolutionary biologist at the University of Wisconsin-Madison. (Experiments to find Hox genes were straight out of a horror movie: scientists created insects with legs where their mouths should be.)..."
"...The first step is figuring out the normal process of chicken development, ?so we don?t develop a mutant chicken that has nothing to do with development or evolution,? he says. (Think of mothers who took thalidomide, a drug used to treat morning sickness in the 1960s, many of whose babies were born with flipper-like hands and feet.)..."
Source: http://www2.macleans.ca/2009/08/20/the-quest-to-build-a-dinosaur/
Yeah...it'll be interesting to see what happens in things don't go flawlessly (and we know nothing is perfect). Not really sure I'd want to see the results of flawed experimentation. I mean the fruit fly had legs where its mouth was supposed to be! Ahh!
At any rate, there are so many practical/ethical/etc. things to go through so I'm not sure if I'd like to see this go through. On one hand, proving evolution and advancing science is great, but on the other, how far will we need to go? Maybe it will end up like the movies, where next thing you know we've got experimentation problems among all kinds of life forms (humans included), or new biological weapons (Though it would be cool to see an army of dinosaurs).