Cure for Type 1 diabetes imminent after Harvard stem-cell breakthrough?

This is big news if it works in humans. From the Telegraph:

“A cure for diabetes could be imminent after scientists discovered how to make huge quantities of insulin-producing cells, in a breakthrough hailed as significant as antibiotics. Harvard University has, for the first time, managed to manufacture the millions of beta cells required for transplantation. It could mean the end of daily insulin injections for the 400,000 people in Britain living with Type 1 diabetes. And it marks the culmination of 23-years of research for Harvard professor Doug Melton who has been trying to find a cure for the disease since his son Sam was diagnosed with Type 1 diabetes as a baby.”

[…]