For how long, I wonder
"Data stored in these 'living hard drives' are stably maintained and effectively protected – over multiple cell generations – from external environments where naked DNA would otherwise be degraded"
We'd need to translate "multiple cell generations" into hours, days, months and years before I'll be convinced. I have 30 year old hard disks that still retain their contents intact, and they've lust been stored in cardboard boxes on open shelves, and I have UV erasable EPROMs from even longer ago ditto. By comparison, living cultures seem intrinsically fragile. A whole new meaning to "my storage just died"?