A recent article on embryonic stem cells in the Pensacola News-Journal makes no mention of the use of SCNT (or therapeutic cloning) in the embryonic stem cell business:
Medical experts say research using only embryonic stem cells is necessary because the cells are different from adult cells. Embryonic cells can multiply into an unlimited number of specialized cells. Their adult counterparts are more rare and develop only cells similar to the tissue from which they were taken.
By generating these embryonic cells, medical researchers expect to learn about diseases that start with problems in this process. It could lead to correcting the cancer cells and birth defect cells.
Also, embryonic stem cells could be a renewable source of replacement cells and tissues to treat diseases and disabilities such as Parkinson's and Alzheimer's diseases, spinal cord injury, stroke, burns, heart disease, diabetes and rheumatoid arthritis.