According to the U.K. border agency, it takes between five to 10 minutes to register for IRIS and a registered traveler entering the U.K. by passing through the IRIS barrier can clear immigration in about 20 seconds.

WSJ: Cutting Down On the To and Fro

We also know that M-series laptop and K-series desktop CPUs will have Iris Pro options.

ENGADGET

The Iris Recognition Immigration System allows registered passengers to enter the U.K. without standing in line at passport control.

WSJ: Cutting Down On the To and Fro