So far, only self-donated cells have shown any value whatsoever. Embrionic stems have had disastrous outcomes across the board, from all that I can recall reading.
Actually, that's misconception on both points.
Self-donated cell tissue isn't all that's being used for iPSC research. Note University of Texas' successful creation of viable offspring from two fathers (plus an XX blastocyst). Think about it....What a boon adult stem-cell research might be for the gay-marriage movement! We wouldn't have this research if we'd stuck with just embryonic cells, so someday, the gay-marriage crowd might be giving a medal to folks like the scamsters at LifeSiteNews.com for helping Heather to truly have two mommies or daddies!
And embryonic stem cells haven't even had a chance at a human clinical trial yet, considering the first clinical trial patient was started in October 2010, and the second clinical trial (human) was approved in November 2010.
And let's not discount the fact that we couldn't have adult stem-cell successes without the earlier embryonic stem cell work that revealed our current path.