Are they available on the NHS?
For some people they are, but not most at the moment. It is worth checking with your doctor to see if you qualify, but really you need to be struggling with disabling or recurrent hypoglycaemia (low blood sugar levels) to qualify.
These new systems can be bought if a patient does not qualify, but at a price that a lot of people will not be able to afford them. Hopefully though, in time, these costs will drop sufficiently to make this more affordable and available to more people.
Could this be the step forward that so many people with diabetes need to improve their blood sugars and, in turn, their health? Time will tell, but we need these devices to become available to more people before this truly can be assessed.