http://www.cnn.com/2007/TECH/science....ap/index.html
I was reading the article and was fairly ok with it's concept until the very last comment in the article:
"When these things are created, they're going to be so weak, it'll be a huge achievement if you can keep them alive for an hour in the lab," he said. "But them getting out and taking over, never in our imagination could this happen."
That last comment very much makes me leary about what they are attempting to do. I can kinda see where this technology would/could have some ways of helping us in our lives.
But I can also see this going exactly like that very last comment says...