Just wondering because I just read
this and I was impressed by it. But didn't know if supporting it would be haram (since you take living cells) Salams!
The only controversy surrounding stem cells comes from embryonic stem cells. The article you linked to talks about using a person's own stem cells. There is no ethical problem here.
Embryonic stem cells are controversial because acquiring stem cells from embryos require destroying them. You can probably make a judgment on it based on how you view abortion.
My own view is that taking embryonic stem cells is only okay if the fetus will be aborted anyway due to rape, incest, endangering the mother's life, or other special cases that may have been allowed within the Islamic community.