Of the notable changes, many are cosmetic -- if there are major underlying differencesbetween this OS and the one on the Droid, we can't see what they are.
The literature on similarities and differencesbetween ES cells and iPS cells, he said, is quite controversial and scientists still do not know whether differencesbetween different iPS cell lines are just due to genetic differencesbetweenthe adult cell lines that were used for reprogramming or whether genetic changes occurred during reprogramming.