Take a look at the various diatribe articles on the becon hill project.
They used a dex g4, two tslims and an iPhone as controller. One pump for rapid insulin, one pump for glucagon, dex g4 to detect BS levels and the iPhone to run the algorithms and tell which pump to dispense, depending on BG levels. Patients young and old did not want to give it back even though it ment daily site change for the current powder/reconstituted glucogon, and ment carrying two pumps, a g4 and an iPhone.
Eventually it will all be integrated into one device. They are going for the whole ball of wax. Not just a low shut down with an inaccuate for many cgm.
The new stable liquid glucagon trials are one of the pieces of the puzzle. The dual pump is another part, as is the dex integration. And the current tslims have enough computing chip power to run the algorithms.
Like I said glad I'm in the pipeline!