From what I have read/seen of this device, there is a container with an ashma inhaler type technology that holds the liquid. When an 'imitation cigarette' delivery device is inserted it is filled from the liquid container. The delivery device gives metered 2 second 'puffs' over a period of two minutes, when it needs to be inserted into the refill device.
It does have one similarity to an ecig, it is a cigalike in appearance although with no LED and no heating. Apart from that it works just like an asthma inhaler.
Unlike current inhalators the user should feel something when inhaling, a cold spray. Of course if there was any visible vapour it would be impossible to get an MA for it as it would then 'look like smoking'.
I described this to my GP, who is supportive of vaping and changes the status of vapers to 'non-smoker' after the NICE-ordained period without smoking. When I described the Kind Consumer/BAT device to him he said that it wouldn't work. In fact he thought it would be less successful than current inhalators, patches and so on.
My GP will not normally prescribe chantix as he thinks it too dangerous. Although he was, at first anyway, keen on medically approved ecigs just because he'd be able to prescribe them, I think he may now realise that no real ecig is ever likely to be approved because 'it looks like smoking'.