It will be interesting to see this applied to humans. I am huge believer in stem cell research, and truth be told it drives me awol to hear people so against it. This research is saving lives, giving people back things that were taken away. If/when the time comes that my Mom goes blind, if it wasn't for her glaucoma, stem cells could reverse the effects of pigmentosis (a disease that ruins the rods of the eye that affects night vision and causes blindness). It's already taking people who are blind, and giving them back the gift of sight.
All I can really to say people who are against stem cells is wait until you're told something that will dramatically change your life.