I should mention that despite the fact that the umbilical cord stem cells did not work in the case of the women mentioned in the article, there is a FReeper that has a link to a whole host of helpful procedures using these stem cells versus embrionic stem cells.
The problem with umbilical stem cells is that they do not upset people who care about the sanctity of life. Thus they do not provide a way for left wing nuts to feel superior to the rest of us.