For hESCs to be patient-specific like ips cells, "spare embryos" from fertility clinics will not be sufficient.
In the last year, over 800 new laboratories have begun conducting research on ips cells.
However, over the last year, the ips technique has been significantly improved.
A threaded language.
["IPS, An Unorthodox High Level Language", K. Meinzer, BYTE pp. 146-159 (Jan 1979)].