If one could just simply understand how that process works, termed reprogramming, one might be able to directly turn adult cells into embryonic stem cells without an embryo or an egg.
The method we have presented is not a replacement for embryonic stem cells. The advantages these offer are purely scientific ones.
I can't stress enough that this technology is not ready for prime time right now. It is not a replacement for those techniques that we already have for derivation of embryonic stem cells.