Although reported as opening "soon", and "in early March", the enrolment station is apparently going to be situated between gates 3 and 4 at T4.

I don't often wander down to that end of the terminal, but if memory serves correct, there isn't anything between these gates - i.e. they're adjacent.

Has anyone been down that way recently and can advise if there is anything happening there?

(IRIS is the eye-recognition immigration system which is shortly to go live).

And why have they not chosen T1 to be part of the initial roll-out? (potential demand too high for a new system?)