Stem Cells Encapsulated and Implanted Already...!

wow...first bit of hope I've actually got excited about

This is fantastic progression. I have a couple of questions though. I am assuming you would always have to have this device inside you (or wear one like a pump)? I initially thought these cells would be transplanted via injection or surgery.
Also would this device contain enough insulin to last a lifetime or would it need to be replaced? I believe the amount of insulin a non diabetic naturally produces over a lifetime is microscopic and what we inject is actually preservatives etc that gives the insulin mass. Please correct me if anyone knows differently?

Wow!

This blog post explains what viacyte have been doing
http://www.diabetesmine.com/2012/01/whats-up-with-diabetes-stem-cell-research-firm-viacyte.html

And this is quite a good article explaining the differences between the Harvard approachin the news a couple of weeks ago and the Viacyte approach
http://www.biosciencetechnology.com/articles/2014/10/embryonic-stem-cells-trial-diabetes