Interesting indeed, that they feel that working with adult cells "has more potential" than embryonic stem cells, even though they admit that the stem cells are more flexible.
Methinks that, just as with the push for research into alternative fuels, searching for alternatives for embryonic stem cells for variety and viability of research rather than for moral reasons has a better prospect for sustainability.
Actually it's even better than that. What he's talking about is the "dedifferentiation" of somatic cells, like skins cells INTO embryonic-like stem cells. Last year, Japanese scientists figured out how to "dedifferentiate" cells, a huge leap forward, instead of the hassle in looking for embryonic or adult stem cells.